A shift in weather patterns causes a drought. The normally moist forest becomes dry, with the leaf litter on the forest floor blowing away in high winds. The creek, which normally overflows and floods the forest floor every time it rains, dries up. What would you expect to happen to the slime molds that live in the area
Answers
The creek, which normal overflows every time it rains and floods the forest floor, dries up. The slime molds would shift from the plasmodium and form fruiting bodies. Correct option is a.
In plants that thrive in extremely hot or extremely cold environments, the epidermis may be several layers thick to guard against excessive water loss from transpiration. The epidermis is typically one cell layer thick. All plant species have a waxy covering on their leaves called the cuticle. Water loss from the surface of leaves is slowed down by the cuticle. On the leaf surface of other leaves, there could be tiny hairs (trichomes). Trichomes can slow down transpiration by obstructing air flow over the leaf surface, limiting insect movement, or storing poisonous or unpleasant substances, which all work to ward off herbivory.
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Complete question is:
A shift in weather patterns causes a drought. The normally moist forest becomes dry, with the leaf litter on the forest floor blowing away in high winds. The creek, which normal overflows every time it rains and floods the forest floor, dries up. What would you expect to happen to the slime molds that live in the area?
A) The slime molds would shift from the plasmodium and form fruiting bodies.
B) The plasmodium would expand and colonize the now clean forest floor.
C) Dry conditions would encourage the slime mold to photosynthesize.
D) The slime mold would begin making red photosynthetic pigments.
E) The slime mold would begin parasitizing humans.
Related Questions
Rate can be Independent of Concentration of Reactants for A→B
1) What does the rate depend on?
2) When can enzyme-catalyzed reactions exhibit zero order kinetics?
Answers
1) The rate of a reaction depends on the temperature, the activation energy, and the concentrations of the reactants.
2) Enzyme-catalyzed reactions can exhibit zero order kinetics when the enzyme is saturated with the substrate, meaning that the reaction rate is independent of the substrate concentration.
There are a number of variables that can affect a reaction's pace, but temperature and reactant concentrations have the biggest impact. The rate of a reaction is often higher when both the activation energy and reactant concentrations are high.
On the other hand, the pace of the reaction slows down when the activation energy is relatively high or the reactant concentrations are low. When an enzyme becomes saturated with a substrate in an enzyme-catalyzed reaction, the reaction rate can display zero order kinetics and be limited regardless of the substrate concentration.
This is because the enzyme's full catalytic capability has been reached and no more rate of reaction can be achieved by adding more substrate.
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describe the path followed by water from the soil, through the plant and into the atmosphere. where are the important resistances to water movement in this path? describe the casparian strip and its function. from the point of view of its function, what is the most important substance in the casparian strip?
Answers
The water moves from the soil through the cells of plants and finally reaches the atmosphere via transpiration. The resistance factors of this process are air, humidity, light intensity, temperature, and transpiration. Casparian strips are important for their impermeable nature for water movement.
The movement of water starts when the root uptakes water from the soil. The water first enters the growing root tip and then enters the root hairs. The water will move the root using three different pathways such as apoplastic, transmembrane, and symplastic pathways. Once this water crosses these pathways, the centers the cortex and crosses the endodermis having a Casparian strip. Then, water enters the xylem cells which are subject to long-distance transport. The water then vascular bundle and distribute in the epidermal and mesophyll cells. It is drawn into plant cell walls and is moved to the atmosphere in the form of water vapor via stomata. The resistance that affects this pathway is air, humidity, light intensity, temperature, and transpiration.
Casparian strips are impermeable substances that are found in the endodermal cells of plant roots. They form a barrier against the apoplastic flux and force the ions to pass through the selectively permeable membrane to the cytoplasm. This thus forms positive hydrostatic pressure and prevents the movement of toxic and pathogens.
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Describing Photosynthesis
How does photosynthesis occur?
The Sun's energy is captured by the
ucts include glucose and
which is released into the air.
Answers
Answer:
the process in which plant synthesize its own food with the help of Sun , Carbon daioxide , Water .
Photosynthesis takes place inside plant cells in small objects called chloroplasts . Chloroplasts contain a green substance called chlorophyll .This absorbs the light energy needed to make photosynthesis happen.Plants get carbon dioxide from the air through their leaves, and water from the ground through their roots.
the thing released into the air is Oxygen
hope this help's u if it does so please mark me as brainiestAnswer: photsynthesis a process in plants.
Photosynthesis takes place inside plant cells in small objects called chloroplasts . Chloroplasts contain a green substance called chlorophyll .
Explanation: photosynthesis mainly occurs in the presence of CO2 solar energy and water and nutrients
they trap co2 and give out o2 which we breathe .they prepare foood mainly by using these the suns energy is trapped to convert water and c02 to glucose and sugar. the roots mainly takes nutrients and provides leaves with the nutrients to nourish it and thus they r called hectrotrophs
co2:carbon dioxide
o2 : oxygen
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As latitude increases,___.
temperature increases
O temperature decreases
biomes increase in size
biomes decrease in size
Answers
Answer:
As latitude increases the temperature decreases
what did the south american fossils (megatherium and glyptodon among others) suggest to darwin? that is, what things did. he comment on and what questions did that cause him to ask?
Answers
The South American fossils suggest Darwin about the theory of evolution. He comments on the fossils of extinct mammals and asked what cause them to change over time.
There are many things Darwin was able to observe from the fossils in South America. He uncovered the fossils like Glyptodon and Megatherium. These fossils resemble giant armadillos and slots and are mostly found in the geological range. So he compared those fossils with the modern armadillos and sloth. Based on this, he was able to conclude that the related species will change over time.
In the Andes mountains, he also observed the fossils of marine animals. During his voyage in South America, he studied how species adapted to a range of habitats, including rainforest, grassland, and mountain ecosystems.
All these findings helped him to propose the theory of evolution. He observed and concluded that all species of animals begin and develop through the natural selection of small, hereditary mutations that enhance the individual's capacity for competition, survival, and reproduction.
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Please help me with this! Quickly please
Answers
Answer: A is the answer
Explanation:
What is a fuel cell? Describe the principle of working of a fuel
cell with reference to H2 – O2 cell
Answers
A fuel cell is an electrochemical device that generates electricity through a chemical reaction between a fuel, such as hydrogen, and an oxidizing agent, such as oxygen or air.
The working principle of an H2-O2 fuel cell can be described as follows:
Fuel Input: Hydrogen gas (H2) is supplied to the anode (negative electrode) of the fuel cell, while oxygen gas (O2) or air is supplied to the cathode (positive electrode).Anode Reaction: At the anode, hydrogen gas is split into protons (H+) and electrons (e-) through a process called oxidation. The catalyst, typically platinum, facilitates this reaction by promoting the breaking of the hydrogen gas molecules into protons and electrons.Anode Reaction: 2H2 → 4H+ + 4e-Electrolyte: The fuel cell contains an electrolyte, which can be a solid-state material or a liquid solution. The electrolyte allows the passage of protons (H+), while blocking the flow of electrons (e-). This creates an ionic pathway for the protons to move from the anode to the cathode.Cathode Reaction: At the cathode, oxygen gas (O2) or air combines with protons (H+) and electrons (e-) from the external circuit to form water (H2O). This reaction is facilitated by another catalyst, often platinum or a related material. Cathode Reaction: O2 + 4H+ + 4e- → 2H2OElectron Flow: The electrons generated at the anode cannot pass through the electrolyte, so they are forced to flow through an external circuit, creating an electric current that can be used to power electrical devices or recharge batteries.Overall Reaction: The overall reaction in an H2-O2 fuel cell combines the anode and cathode reactions, resulting in the production of water as the main byproduct. Overall Reaction: 2H2 + O2 → 2H2OThey have applications in various sectors, including transportation, stationary power generation, and portable electronics, offering a clean and efficient alternative to conventional energy sources.
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A trait has two alleles, represented by p and q. If p = 0.89, what is q?
Answers
how are coecervates similar to living organisms
Answers
Answer: Coacervates are similar to living organisms as they are capable of absorbing nutrition and also can grow under proper living conditions.
Explanation: Coacervates are regarded as the foundation of early life in Oparine Haldane theory's (abiogenesis) view. In order to manufacture organic compounds from an ocean of food, scientists think that they developed chemically.
They consist of a grouping of colloidal droplets held together by hydrophobic force.
Both live cells and non-living cells share certain commonalities with them. In a suitable physical and chemical environment, they can develop and absorb nutrients. Although they are incapable of reproduction, coacervates can maintain homeostasis just like living cells. A live organism's ability to reproduce is one of its most crucial characteristics. Therefore, we are unable to classify them as living entities.
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Wheat stem rust (Puccinia graminis) is a fungus that can cause disease in wheat plants. The fungus infects a wheat plant by injecting proteins into the plant's cells. These proteins help the fungus grow and reproduce, harming the plant in the process.
To prevent losing crops to this disease, farmers around the world grow wheat plants that are resistant to wheat stem rust. Resistant plants make their own proteins that detect the injected proteins of wheat stem rust and then trigger a physiological response. This response prevents the fungus from growing on the plants and causing disease.
In 1999, a new strain of wheat stem rust was discovered in Uganda. This strain, called Ug99, can cause disease on wheat plants that were previously resistant to stem rust. According to the Food and Agriculture Organization of the United Nations, Ug99 is a major threat to global wheat production.
Based on the information above, which of the following is most likely true about the ancestry of wheat stem rust strain Ug99?
Answers
Ug99 is most likely descended from a strain of wheat stem rust that existed before 1999. This is because the strain was discovered in Uganda, a region that is known to have had stem rust for centuries.
The fact that the strain can cause disease on wheat plants that previously were resistant to stem rust suggests that it is a new strain that has evolved over time. This evolution could have been caused by natural selection, meaning that the strain is adapted to the environment and has become more virulent over time. Finally, the fact that the strain has spread to other parts of the world further suggests that it is descended from an older strain.
In conclusion, Ug99 is most likely descended from a pre-existing strain of wheat stem rust. This is supported by the fact that it was discovered in Uganda, it can cause disease on previously resistant plants, and its spread to other parts of the world. This is a major threat to global wheat production and further research should be done to find ways to control it.
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Why is a single base insertion or deletion likely to drastically change how the rest of the genetic code is read?
Answers
The genetic code is of utmost importance as a slight change in it can change the characteristics of an organism. Just like that base insertion or deletion can cause shifting of frame and can result in a change of the nucleotide sequence causing mutation.
What are the types of mutation?Mutation is any change in the genetic sequence that can lead to changes in the genome.
It can be of the following types:
Germline mutation: In gametes, germline mutations occur. Other cells in the body experience somatic mutations.Chromosomal alterations: these are mutations that change the structure of the chromosome.Point mutations: it affects only one nucleotide.Frameshift mutations: these are nucleotide additions or deletions that cause a shift in the reading frame.Thus, base insertion or deletion likely to drastically change how the rest of the genetic code is read as it result in frameshift mutation.
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Germination will not happen unless a seed
A. is dispersed far from the plant that produced it.
B. absorbs water.
C. uses its stored food.
D. grows stamens and a pistil.
Answers
An organ is a?
#1. Group of organs that work together.
#2. Group of similar cells that perform a particular function.
#3. Cell that has a specific function inside the body.
Answers
Answer:
#2
Explanation:
Group of similar cells that perform a particular function.
Cell
organelles: Where do
find them? Prokaryotes or eukaryotes?
Answers
Explain how meiosis results in four haploid daughter cells.
Please help this is due today and I really need help
Answers
Answer:
phones
Explanation:
interpreting cladograms which organisms evolved from the common ancestor pakicetus? bats and humans tigers and deer whales and hippos belugas and squids
Answers
A cladogram is a diagram that depicts evolutionary connections between various organisms by showing how they diverged from their common ancestor over time. In this context, interpreting cladograms can help determine which organisms evolved from a common ancestor like Pakicetus. The answer to the question, which organisms evolved from the common ancestor Pakicetus, is whales and hippos.The question asks which organisms evolved from the common ancestor Pakicetus.
Cladograms generally indicate how different groups of organisms are related, based on the similarities and differences between them. Pakicetus is an ancestor of cetaceans, which includes whales and dolphins. Based on the evolutionary relationships shown on a cladogram, we can see that the hippos are the closest living relatives of cetaceans. Therefore, we can infer that whales and hippos evolved from the common ancestor Pakicetus. Hence, the correct answer to the question is "whales and hippos."
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locate the bifurcation values for the one-parameter family and draw the phase lines for values of the parameter slightly smaller than, slightly larger than, and at the bifurcation values. 1. dy/dt=y^2 +a
Answers
The given differential equation is:dy/dt = y² + The bifurcation value is the value of a for which the number and stability of equilibrium solutions change.
The equilibrium solution is given by the equation:dy/dt = 0⇒ y² + a = 0⇒ y = ± √(- a)
So, the equilibrium solutions are y = + √(- a) and y = - √(- a).
The sign of the root is determined by the initial conditions and the direction of the phase line.
The bifurcation occurs when a = 0. When a < 0, there are two real equilibrium points.
When a > 0, there are no real equilibrium points, but the phase line has two directions of arrows going toward infinity.
When a = 0, there is only one equilibrium point at y = 0. At this point, the direction of arrows on both sides of the equilibrium is towards the equilibrium.
Thus, the bifurcation values for the one-parameter family are a = 0.
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PLZZZZZZZZ HELPPPP!
What is an example of an event that can compromise an ecosystem?
1.seasonal climate change
2.seasonal dry period
3.d eveloping land around cities
4.high temperatures
Answers
Answer: Seasonal climate change
Explanation:
Answer:
1. Seasonal climate change
Explanation:
oh, and can you please talk to Miracle, she needs a lot of help right now since her grandma passed away
What does adduction mean in anatomy?
Answers
Answer:
Adduction: Movement of a limb toward the midline of the body. The opposite of adduction is abduction.
Explanation:
Adduction is the term used in anatomy to describe the movement of either a limb forward towards the anatomical position of something like the body.
Describe an anatomy.a branch of biology that focuses on identifying and describing the physical characteristics of living organisms. In its most restricted meaning, gross anatomy solely refers to the investigation of major body components by dissecting and observations.
Which four branches of anatomy are there?Other divisions of human anatomy include living physiology, anatomy and physiology, surface anatomical structures, and therapeutic anatomy. Gross anatomy studies the macroscopic aspects of the human body, while histology focuses on the microscopic components. Gross anatomical, minuscule anatomy, human anatomy, short term and later, zootomy, and embryology are only a few types of anatomy.
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Choose all the answers that apply.Which of the following are benefits of genetic engineering?new vaccinescreation of toxic wastesterile offspringcancer drugsseedless grapes
Answers
Solution:
Genetic engineering has helped to propose the use of new drugs, proteins, or the use of DNA to control and correct cellular defects, as well as activate the immune response to eliminate the tumor cell.
On the other hand, genetic engineering is used to generate new vaccines, such as recombinant vaccines.
Finally, genetic engineering is used to generate transgenic organisms or transgenic products.
So, we can conclude that the correct answer is:
New Vaccines
Cancer drugs
Seedless grapes
The forest at Great Smoky Mountains National
Park is sick, infected by invasive bugs and
plants. Matt Moore, Kaleb Lique Naitove and
Emily Baird of the National Park Service are
some of the field medics trying to keep it alive.
…
The forest they walk through is mesmerizing. The
trees glow green in the Tennessee sun. There
are a lot of tree species in this forest, but the
one they’re looking to treat is an Eastern
hemlock, an evergreen conifer that ranges
from Canada to northern Mississippi. Hemlocks
make up a significant portion of a lot of forests
in the eastern U.S., but particularly so in Great
Smoky Mountains National Park.
…
‘A Tsunami Wave’ Of Adelgids
After about 20 minutes of hiking off-trail in
the park, Moore and company reach the tree
they’ve been looking for. It’s tall, but not
particularly big. You could wrap your arms
around its trunk and still clasp your hands. By
all outward appearances, it’s healthy.
It’s time for the crew to start helping the tree
by injecting it with pesticide. Moore drills holes
around the tree’s base and then Lique Naitove
and Baird attach tubing. A bicycle pump
connected to the tube system begins to fill
it and then the base of the tree with the red
pesticide.
The female wooly adelgid is miniscule, attaching herself to the hemlock’s needle after creating her ova sack, as
shown above.
To Tame A ‘Wave’ Of Invasive Bugs,
Park Service Introduces Predator
Beetles
by Nathan Rott
Instructional Segment 1 | Authentic Reading
1
Copyright © by Savvas Learning Company LLC. ,
It’s called a tree injection system. “We call
them IVs,” Webster says. “They’re out doing
a tree IV.”
It’s like a flu shot that will help the tree ward off
invasive bugs. Most of the trees Webster’s crew
treat just get sprayed with pesticides that have
the same effect. This one’s different because
it’s near a stream and the crew doesn’t want
pesticides getting in the water.
They can’t do it for all of the trees they
treat because there are just too many. The
vegetation crew here has treated more than
a quarter million trees in the Great Smoky
Mountains. The treated ones, like the one they
hiked to, are easy to spot because they look
healthy and are alive. The trees that weren’t
treated are probably dead “or they’re close
or on the way out very soon,” Webster says.
“Probably in the next 10 years.”
The reason for this die-off is the hemlock
woolly adelgid, which is native to Asia.
Scientists believe that the specific kind killing
the Eastern hemlock is from southern Japan.
Adelgids were first discovered in the U.S. in
the 1920s. They were transported overseas
by humans and continue to be spread with
human help, mostly through the purchasing,
selling and transporting of firewood. Today,
the hemlock woolly adelgid is established in
16 states, from Maine to Georgia.
The trees at Great Smoky Mountains National
Park have been infested with adelgids
for longer than a decade. With no natural
predators and no evolved defenses, the
adelgids swept through the hemlocks at the
park like “a tsunami wave,” Webster says.
Many of the park’s hemlocks died quickly;
others are dying more slowly.
…
A Predator-Prey Balance
The pesticide treatment that the park’s
vegetation crew uses doesn’t get rid of the
hemlock woolly adelgid. It protects the tree
that gets it and only lasts five to seven years.
“It’s a stopgap solution,” Webster says.
Because of that, the National Park Service and
scientists have been trying a longer-lasting
one: predator beetles. The hemlock woolly
adelgid, like most invasive species, thrives in
its new environment because it doesn’t have
any natural predators. To change that dynamic,
Great Smoky Mountains National Park has
brought in a few species of predator beetles
from Asia that they’re raising at insectaries, or
nurseries for bugs.
…
Predator beetles will never eradicate the
hemlock woolly adelgid. They’re here to stay.
The hope of the Park Service is that by creating
that balance between predator and prey and
by educating people to not move firewood
from one location to another, they can slow
the spread of the adelgid enough to give
the remaining Eastern hemlocks a chance to
survive and adapt.
READING COMPREHENSION
1. About when were the wooly adelgids introduced to the US and how are they spreading?
2. Describe how the introduction of a predator beetle from Asia might affect the wooly adelgid population.
3. Describe why the hemlock wooly adelgid was able to sweep through the hemlocks of Great Smoky Mountain National Park.
4. Why did the vegetation crew decide to treat the hemlock in the article with a tree IV, instead of using pesticides as they did for other hemlocks?
Answers
What happens to the growth of a population when Al resources are unlimited
Answers
Answer:
Exponential population growth: When resources are unlimited, populations exhibit exponential growth, resulting in a J-shaped curve. When resources are limited, populations exhibit logistic growth. In logistic growth, population expansion decreases as resources become scarce.
Serious stress can come from dealing with a personal crisis, disaster or health crisis, and failure to deal with the serious stress can potentially lead to a __________ condition.
Answers
Answer: Stress that's left unchecked can contribute to many health problems, such as high blood pressure, heart disease, obesity and diabetes.
Explanation:
The number of mitochondria are increased during interphase. True or false?
Answers
50 points HELP!!
What would be the correct complimentary DNA strand given the following DNA strand.
DNA: ATACGAAAT (Type as one word - no spaces)
Using the same strand of DNA, what would be the correct sequence for an RNA strand? (Type as one word - no spaces)
Answers
DNA replication, Process during which a double- stranded DNA molecule is copied to ... You can determine the sequence of a complementary strand if you are given the ... DNA replication is not the same as cell division.
Answer:
TATGCTTTA for question 1.
For RNA following the original strand it would be UAUGCUUUA
Explanation:
Replace A with T(vice versa), and C with G(vice versa)
But for the RNA, A bonds with U instead of T. So it would be the same as the complimentary DNA, just with U instead of T
How can reverse transcriptase inhibitors slow the replication of dna? give an example that lay persons without this knowledge could understand, and why they need to know it.
Answers
Preventing reverse transcriptase activity is a tactic in the fight against contagious infections like HIV. Drugs can be created that specifically target and inhibit the reverse transcriptase enzyme, essentially freeing your DNA polymerase to carry out its function.
What are reverse transcriptase?AZT and DDI are two of the more well-known medications among them. AZT stands for azidothymidine in the acronym. This medication traps the invasive reverse transcriptases and causes them to stop copying RNA into DNA. When that occurs, the HIV virus is unable to multiply, and your immune system can more readily get rid of these infections from your body. Because it is so specialized in combating reverse transcriptase, AZT has been referred to as a magic bullet.
The fact that your body periodically uses reverse transcriptase-like processes for normal functioning makes it far from perfect, and the fact that HIV can swiftly adapt so that it is no longer deceived by AZT make it less than ideal. Because of this, a combination of many reverse transcriptase inhibitors, such as AZT and DDI, is frequently required for an effective HIV treatment.
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What is the complementary strand for this segment of DNA? I'll give u 15 point pls answer
Answers
mr. and mrs. smith have three sons in elementary school. two of their children are progressing normally, but their youngest son, charles, has been much slower than his siblings in developing speech and language skills. his parents are concerned that he has a learning disability and decide to investigate further. since some learning disabilities can be genetically based, their pediatrician recommends a chromosomal analysis. the results show that charles has a trisomy of the sex chromosomes, diagnosed as xyy. a mistake during sperm formation resulted in an extra copy of the y chromosome. the extra copy was passed on to charles during fertilization. most often, this chromosomal change causes no unusual physical features or medical problems, but those with trisomy of the sex chromosomes may have a higher-than-normal risk of delays in learning development. during which stage of meiosis could this mistake have occurred?
Answers
which of the following describes the role of glutamine synthetase in protein catabolism? i. glutamine synthetase converts glutamate and ammonia to glutamine using one molecule of atp ii. the reaction catalyzed by glutamine synthetase is reversible iii. the reaction catalyzed by glutamine synthetase removes excess nitrogen (in the form of toxic ammonia) from protein degradation iv. glutamine synthetase converts glutamine to glutamate
Answers
The role of glutamine synthetase in protein catabolism is: (iii) the reaction catalyzed by glutamine synthetase removes excess nitrogen (in the form of toxic ammonia) from protein degradation.
Glutamine synthetase is an enzyme. It condenses glutamate and ammonia to form glutamine. It controls the use of nitrogen inside cells. The location of the enzyme in the body is: brain, kidneys, and liver.
Protein degradation is carried out by a process called ubiquitination where ubiquitin tags are added to the protein destined for degradation. The ubiquitin tags are not added randomly instead they are added to the amino group of the side chain of a lysine residue.
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what is all the tiny photoautotrophs found near the surface of a body of water
Answers
Answer:
Phytoplankton. It refers to all the tiny photoautotrophs found on or near the surface of a body of water. Phytoplankton usually are the primary producers in aquatic ecosystems.
Explanation:
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