Answer:
120 m/s
Explanation:
formula is displacement by time
v=s/t
v= 3600/30
v= 120m/s
Explanation:
displacement/ time
\(v = \frac{3600}{30} = 120 \frac{m}{min} \\ = 2 \frac{m}{s} \)
Which situation would most likely result in evolution? Question 12 options: a. A green parrot has an allele for green feathers and an allele for blue feathers. b. A large population continues to grow larger. c. A butterfly predator sees yellow more easily than it does green, and a population of butterflies includes both phenotypes.
Answer:.
Explanation:
8. All seeds hove seed or fruit to protect them as they grow. How do seeds grow? 9. The of a plant begins with a seed. 10. The way plants grow, five, and is called their life cycle. 11. Most seeds need water, food, and a little heat to become new plants. 12. A new plant has the same life cycle as its plant. Critical Thinking 13. How ore new plants that grow from seeds like their parent plonts?
Seeds grow with the help of various natural resources like water, oxygen, and sunlight, which help them to sprout and grow roots and develop into new plants. Some seeds grow as soon as they land in the ground, while others need a specific time period to grow.
The life of a plant begins with a seed that contains the necessary resources required for the plant's growth, which includes the embryo, endosperm, and protective seed coat.
The process through which plants grow, reproduce, and die is called their life cycle. It includes different stages like germination, growth, flowering, pollination, fertilization, seed production, and dispersal.
Seeds need water, food, and a little heat to grow into new plants. Water helps seeds to soften and expand, and food helps them to provide the necessary nutrients required for growth. The heat helps seeds to break dormancy and activate enzymes that speed up the germination process.
A new plant has the same life cycle as its parent plant. Plants have a unique life cycle, and every stage of the life cycle is essential for their growth and development. New plants inherit their genetic traits from their parent plants, and their life cycle is the same as that of their parent plant.
New plants that grow from seeds inherit their genetic traits from their parent plants and have the same life cycle as their parent plants. The life cycle of a plant includes the stages of germination, growth, flowering, pollination, fertilization, seed production, and dispersal. Thus, new plants that grow from seeds are like their parent plants.
The strong attraction between water molecules is called—-
A-cohesion
B-Magnetism
C-Electricity
D-Polarity
Answer:
Cohesion
Explanation:
true or false. sugars and phosphates break off from the dna nucleotide to provide energy for dna replication.
It is false that sugars and phosphates break off from the DNA nucleotide to provide energy for DNA replication.
What is DNA replication?The procedures by which the genome's DNA is replicated in cells is known as DNA replication.
Before dividing, a cell must copy (or replicate) its entire genome so that each resulting daughter cell has its own complete genome.
This energy is derived from the nucleotides, which have three phosphates attached to them (much like the energy-carrying molecule ATP).
The energy released when the phosphate bond is broken is used to form a bond between the incoming nucleotide and the growing chain.
Thus given statement is false.
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Fructose is a molecule that can move across the cell membrane. If the
concentration of fructose is higher outside the cell than inside the cell, then
what will happen by the process of diffusion?
O A. Fructose molecules will diffuse into the cell.
B. Fructose molecules will disappear by diffusion.
C. Fructose molecules will stay where they are.
O D. Fructose molecules will diffuse out of the cell.
If the amount of fructose is more outside the cell than inside the cell, then fructose molecules will move into the cell through diffusion. The correct option is A.
What is osmosis?Diffusion is the movement of substances from a region of higher concentration to a lower concentration region. A gradient in Gibbs free energy or chemical potential aids in diffusion.
In the given scenario, as fructose molecule is in excess outside the cell and is less inside, then the fructose molecule will cross the membrane from outside the cell to inside due to this concentration gradient.
Thus, the correct option is A.
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Discuss how biology and environment play a role in the development of a fetus. Which do you think has the most lasting impact on the development of a fetus: biology or environment?
Embryonic development is a complex process that is defined by many factors. But in general, we can say that it is affected by 2 important sources of change: genes and the environment. Genes hold the necessary information that will dictate how the embryo will develop and the characteristics it will have. However, the environment will define which genes will be expressed and carry out their function and which genes will be "dormant or silenced" and have no effect on the development of the embryo. Therefore, both are equally important, since on the one hand, if the genes did not exist, the embryo would not have the necessary information to develop. Meanwhile, on the other hand, if the cells did not respond to the inhibitory stimuli of the environment, for example, they would multiply unceasingly leading to the malformation or death of the embryo.
Which factor does not affect the glomerular filtration rate?
(a) Blood pressure
(b) osmotic (H2O) pressure of the glomerular filtrate
(c) Plasma osmotic (H2O) pressure
(d) Concentration of leukocytes in the blood
(e) All these factors affect GFR.
The factor that does not affect the glomerular filtration rate is (d) Concentration of leukocytes in the blood. The other factors mentioned in the options (a), (b), and (c) do affect the GFR.
A blood test called a glomerular filtration rate (GFR) is used to measure how well your kidneys are working. Gglomeruli are the tiny filters in your kidneys. The blood is helped by these filters to get rid of waste and excess fluid. The amount of blood that passes through these filters each minute is estimated using a GFR test.
A GFR can be estimated straightforwardly, yet it is a confounded test, requiring specific suppliers. Therefore, a test known as an estimated GFR or eGFR is typically used to estimate GFR. Your service provider will use a tool called a GFR calculator to get an estimate. A type of mathematical formula called a GFR calculator is used to estimate the rate of filtration. It accomplishes this by contrasting other information about you with the results of a blood test that measures creatinine, a waste product filtered by the kidneys.
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Does a rock use energy
Answer:
No
Explanation:
A rock has no way of consuming energy as it is not a living organism, and cannot perform any processes to transform energy.
Show your knowledge of photosynthesis by choosing the correct role of sunlight in the photosynthesis reaction.
Answer:
The sunlight's energy to change water and carbon dioxide into sugar glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.
The process through which green plants produce their food is called photosynthesis. Photosynthesis requires light, which chlorophyll absorbs.
What is Photosynthesis?During photosynthesis, oxygen and glucose are created as byproducts when carbon dioxide and water mix in the presence of solar light energy.
Plants use their leaves to capture light energy during photosynthesis. Water and carbon dioxide are converted by plants into a sugar called glucose using the power of the sun. Plants use glucose as a source of energy and to create other compounds like cellulose and starch.
According to the claims made, chlorophyll does not mix with water. The pigment chlorophyll in plants merely absorbs solar light energy, which is required for the process of photosynthesis.
Therefore, photosynthesis requires light, which chlorophyll absorbs.
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what are compulsory vaccinations?
Answer:
compulsory Vaccination is the health policy a government adopts in relation to vaccination .
Partical A has very little mass in comparison to partical B. Both Particals are in the same atom. which is the best conclusion about Particals A and B?
A. They have opposite charges
B. They are located in the nucleus together.
C. Partical A has a negative charge, and Partical B is neutral.
D. Partical A orbits the nucleus, and Partical B is located in the nucleus
Answer:
D. Particle A orbits the nucleus, and Particle B is located in the nucleus
Explanation:
Here since both particles are of the same atom and particle A is much lighter we can infer that Particle A is electron because electrons are much lighter than protons which are Particle B in this case. Thus, particle A orbits nucleus as an electron does and particle B is in nucleus where protons are.
What elements do ALL biomolecules have
in common?
Oxygen, Nitrogen,Phosphorus
Hydrogen, Oxygen, Nitrogen
Carbon, Hydrogen, Oxygen
Nitrogen, Phosphorus, Carbon
Answer:
Carbon, Hydrogen, Oxygen
Explanation:
Im not 100% sure but all organic material/molecules contain hydrogen and carbon atoms
Carbon, Hydrogen, Oxygen are common for all types of biomolecules. Thus option C is correct.
What are different types of biomolecules ?Biomolecules are the primary building blocks of our body. The primary biomolecules are Carbohydrates, Proteins, Fats, Nucleic Acids
Carbohydrates are polyhydroxy aldehydes or ketones produced by hydrolysis, collectively called as saccharides
Proteins are polymers of amino acids, can be classified as primary, secondary, tertiary and quaternary protein.
Nucleic acids are up two types namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
The nucleic acid involve in transfer of genetic information and proteins synthesis by processes known as translation and transcription.
The basic units of nucleic acids are composed of a nitrogenous base, pentose sugar, and phosphate.
Lipids are organic insoluble substance in water, soluble in organic solvents, are related to fatty acids, they include sterols, fat-soluble vitamins, mono-, di- or triglycerides, phospholipids, etc.
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when do birds use their teeth????
Answer:
to eat worms
Explanation:
Answer:
Birds do not have teeth, however...Explanation:
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According to The Cornell Lab, "Birds do not have teeth, however, they may have ridges on their bills that help them grip food, but this does not count as teeth. So what about birds that have “tooth” in their name, like Double-toothed Kite? Some birds of prey have a sharp ridge or “tomial tooth” on the bill that they use to bite into their prey when subduing it. But these modifications to the bill surface are not considered the same thing as individualized teeth seen in other animals."
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What was the necessary condition for the evolution of life on earth
Answer:
Water.
Explanation:
Has to have liquid water.
Explain, using the sliding filament theory, why a biceps curl feels easiest in the middle of the curl (b: when the elbow is partially flexed) than either at the beginning (a: when the elbow is extended), or towards the end (c: when the elbow is nearly fully flexed)
The sliding filament theory explains why the biceps curl feels easiest in the middle of the curl (position b) because this is when the actin and myosin filaments are optimally aligned for maximum force production.
The sliding filament theory explains how muscles contract and generate force. Within the muscle fibers, there are two types of filaments: thick and thin. The thick filaments are composed of myosin, while the thin filaments are composed of actin. During muscle contraction, these filaments slide past each other, causing the muscle to shorten and generate force.
When performing a biceps curl, the biceps muscle contracts to lift the weight. At the beginning of the curl (position a), the biceps muscle is in a relatively stretched position, which means that the actin and myosin filaments are not optimally aligned for maximum force production. This makes it more difficult to lift the weight.
As the biceps curl continues and the elbow is partially flexed (position b), the actin and myosin filaments become better aligned, allowing for maximum force production. This is why the biceps curl feels easiest in the middle of the curl.
Towards the end of the biceps curl (position c), the biceps muscle is in a fully contracted position. This means that the actin and myosin filaments are again not optimally aligned for maximum force production, making it more difficult to lift the weight.
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definition of mitosis
What role do you think the minerals that make up a rock and the way a rock forms play in the appearance of rocks?
Write a series of logical steps that you could use to infer the type of climate that existed during the Meganeura’s time.
Some logical steps that could be used to infer the type of climate that existed during the Meganeura’s time include:
Physical features Fossil recordDistribution of other insectsOxygen levelsHow to determine Meganeura existence?Identify the physical features of the Meganeura. Meganeura was a giant dragonfly with a wingspan of up to 70 centimeters. This suggests that it lived in a warm and humid climate, as large insects require a lot of oxygen to survive.
Consider the fossil record. Meganeura fossils have been found in Europe, North America, and Asia. This suggests that it lived in a wide range of climates, but that it was most common in warm and humid regions.
Look at the distribution of other insects. Other large insects, such as cockroaches and termites, are also found in warm and humid climates. This suggests that Meganeura also lived in these types of climates.
Consider the oxygen levels in the atmosphere. The oxygen levels in the atmosphere were much higher during the Carboniferous period than they are today. This would have allowed for larger insects, such as Meganeura, to survive.
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Secular increases in physical growth are smaller for children from _____ families. A.higher-income B.Asian-American C.low-income D.Hispanic-American.
Secular increases in physical growth are smaller for children from low-income families. The correct option for this question is (c) low-income.
Here is an explanation of why this is the case:
Nutritional status: Children from low-income families often have limited access to high-quality nutrition, which can lead to stunted growth and slower development.
Healthcare: Low-income families may have limited access to healthcare services, including preventative care and treatment of illnesses, which can also impact physical growth.
Environmental factors: Low-income families may live in environments with higher levels of pollution, exposure to toxins, and increased stress, which can also impact physical growth.
Genetics: While genetics play a role in physical growth, the impact is generally smaller than environmental factors. Therefore, it is unlikely that genetic differences alone can explain the difference in growth rates between children from low-income families and other groups.
In conclusion, the smaller secular increases in physical growth observed among children from low-income families are likely due to a combination of environmental factors, including limited access to high-quality nutrition and healthcare, exposure to environmental toxins and pollutants, and increased stress.
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If a property owner cuts less trees, how can they make more profit than a non-FSC certified owner?
By increasing the sustainability, FSC certified owner can make more profit
What is non-FSC certified owner?A property owner who cuts fewer trees may make more profit than a non-FSC certified owner in several ways:
Increased sustainability: By cutting fewer trees, the property owner is preserving forest resources and biodiversity, which can attract environmentally conscious consumers and increase the demand for their products.
Better reputation: FSC certification is an internationally recognized symbol of responsible forest management. By obtaining this certification, the property owner can improve their public image, increase their brand recognition, and increase consumer trust in their products.
Access to new markets: Many companies and governments now require their suppliers to source products from FSC certified forests. By becoming FSC certified, the property owner may gain access to new markets and customers, increasing their sales and profitability.
Reduced costs: By reducing the number of trees cut, the property owner may reduce the costs associated with logging and timber harvesting, such as transportation and processing expenses.
In summary, by cutting fewer trees and becoming FSC certified, a property owner can improve their sustainability, reputation, market access, and reduce costs, leading to increased profits.
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Tell me whether the following mystery substances are acids or bases/alkaline:
a. has pH of 2.5, litmus paper turned red
b. has pH of 12.8, litmus paper turned blue
Answer:
A.has pH of 2.5, litmus paper turned red
Explanation:
i knowヾ(•ω•`)o
How a mustard plant can be the correct example of multicellular organization? Justify your answer.
Answer:
he needs to get a glizzy.
Explanation:
because its big
A mustard plant is an example of multicellular organization because it is composed of multiple cells that work together to form tissues, organs, and ultimately, a functioning organism.
A mustard plant, like other multicellular organisms, exhibits a high degree of cellular organization. The plant is made up of specialized cells that have differentiated functions. These cells come together to form tissues, such as the epidermis, cortex, and vascular tissues, which perform specific functions necessary for the plant's growth and survival.
Within these tissues, cells are further organized into organs, such as leaves, stems, and roots. Each organ has a specific structure and function that contributes to the overall functioning of the plant. For example, leaves are responsible for photosynthesis, stems provide support and transport nutrients, and roots anchor the plant and absorb water and minerals from the soil.
The coordination and communication between cells, tissues, and organs allow the mustard plant to carry out essential processes like growth, reproduction, and response to stimuli. Each cell relies on the coordinated actions of neighboring cells to ensure the proper functioning of the plant as a whole.
Furthermore, the multicellular organization of the mustard plant enables it to exhibit complex characteristics and adapt to its environment. It allows for specialized functions, division of labor, and the ability to respond and adapt to changing conditions.
In conclusion, a mustard plant serves as a suitable example of multicellular organization because it demonstrates the hierarchical arrangement of cells into tissues and organs, enabling the plant to function as a complex and coordinated organism.
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How is a recessive allele different from a dominant allele?
Answer:
A recessive allele isn't shown in the phenotype, but a dominant allele is shown in the phenotype.
Sorry, I don't remember much.
which of the following statements is true of linked genes?multiple choice question.they do not assort independently and do not produce mendelian ratios for crosses tracking two or more genes.they do assort independently but do not produce mendelian ratios for crosses tracking two or more genes.
The correct statement is: They do not assort independently and do not produce Mendelian ratios for crosses tracking two or more genes.
Linked genes are genes that are located close to each other on the same chromosome.
Unlike genes that are located on different chromosomes, linked genes tend to be inherited together as a result of their physical proximity. This means that they do not assort independently during meiosis, breaking the principle of independent assortment proposed by Gregor Mendel.
When two or more genes are linked, their inheritance does not follow the expected Mendelian ratios observed for unlinked genes.
In Mendelian genetics, genes located on different chromosomes segregate independently into gametes and produce predictable ratios in offspring.
However, linked genes tend to stay together and are less likely to undergo recombination, resulting in deviations from Mendelian ratios in crosses involving multiple linked genes.
The phenomenon of genetic linkage and its impact on inheritance was one of the key discoveries in genetics that provided evidence for the existence of chromosomes and helped develop the concept of genetic mapping.
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List six parts of the plant that we eat as vegetables and give one example of each.
Answer:
Plants typically have six basic parts: roots, stems, leaves, flowers, fruits, and seeds. Vegetables, however, are the roots (carrots), tubers (potato), leaves (spinach), stems (celery), and other bits of plants that you might eat. For a botanist, a vegetable is sort of like the umbrella word for all the edible parts of a plant.
Water bugs have the unique ability to walk on water by not breaking water's surface tension. Which property of water is responsible for this unique phenomenon?
Answer:
High surface tension and cohesion
Explanation:
This is the characteristic properties of water which provide surface medium for the walking of water bugs. The effects of this is due forces of attraction between the water molecules and the adjacent molecules The network of inter molecular forces created a net inward forces (cohesion)which leads to the contraction of water molecules at the surface.Therefore these molecules resist pulls and stretch and therefore are stabilized,
Surface tension is due to the formation of hydrogen bonds among water molecules,together with the dipole-dipole interactions .These two combined forces ensure the the formation of surface tension .
Therefore the combined effect of surface tension and cohesion ensure the movement of water bug
Answer:
high surface tension
Explanation:
due to the attraction between water molecules
The following diagram represents a cell inside a flask of media:
According to the given statement The cell will gain solutes from the surrounding media.
What is a cell?the smallest biological unit capable of supporting life on its own attempting to comprise all living entities as well as the tissues of the body. The three essential parts of a cell are also the cell, the nucleus, and the cytoplasm. The cell membrane, which encompasses the cell, controls the substances that enter and exit the cell.
Why are cells important?Cells provide the framework and essential functions of all living organisms, including germs and humans. Scientists consider them to be the smallest form of life. Cells contain the biological mechanism that produces essential proteins, chemicals, and signals necessary for every body function.
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The complete question is -
The following diagram represents a cell inside a flask of media:© 2012 FLVS Over time, the cell will
Which of these pairs does not correctly match a carbohydrate with its function?
Of the available options, the first one states that cellulose is a structural part of the hair, this is not correct for several reasons, first cellulose is a biopolymer characteristic of cellular walls in plants, and it's not present in animal cells, secondly human hair is formed mainly of keratin a protein, therefore their basic units are amino acids, not carbohydrates. Therefore taking this into consideration, the correct answer is option 1.
a homozygous tall (tt) plant is crossed with a heterozygous tall (tt) plant. (tall is dominant to short). what percentage of the offspring will be tall?
Since the homozygous tall plant has two copies of the dominant allele (TT), all of its offspring will inherit one dominant allele for tallness. On the other hand, the heterozygous tall plant has one dominant allele and one recessive allele (Tt), so half of its offspring will inherit a recessive allele for shortness. Therefore, the cross will result in 100% of the offspring having at least one dominant allele for tallness. Thus, the percentage of the offspring that will be tall is 100%.
It seems like there's a typo in the question. I assume you meant to write that the homozygous tall plant is TT, not tt. So, a homozygous tall (TT) plant is crossed with a heterozygous tall (Tt) plant.
In this case, the possible offspring genotypes are:
- 50% TT (homozygous tall)
- 50% Tt (heterozygous tall)
Since tall is the dominant trait, both TT and Tt will display the tall phenotype. Therefore, 100% of the offspring will be tall.
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6. which of the following components of the neuromuscular junction would be directly affected by the toxin produced by bacterium clostridium tetani? a. the axon terminals b. the motor end plate c. the sarcoplasmic reticulum d. the synaptic cleft
Motor end plate of the neuromuscular junction would be directly affected by the toxin produced by bacterium clostridium tetani.
Clostridium tetani is a soil bacterium. It is a major causative agent for tetanus. It enters the body through wounds or necrosis. Bacteria that reside in muscles release neurotoxin called tetanospasmin. It enters the axon of the motor neuron and moves retrogressively and reaches the inhibitory neuron where it enters into the axon bulb and prevents the release of neurotransmitters called gamma amino butyric acid and glycine. Hence the inhibitory neuron cannot pass signals to the motor neuron which causes more muscle contraction since signal from the inhibitory neuron reduces muscle contraction.
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