Answers
Answer:
Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host.
Explanation:
Answer:
Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host.
Explanation:
Related Questions
Which property of the cell membrane allows it to act as a highly selective barrier? the rigid structure of the cell membrane the hydrophilic heads and hydrophobic tails O consisting of a single layer being made up of primarily carbohydrates
Answers
The property of the cell membrane that allows it to act as a highly selective barrier is the hydrophilic heads and hydrophobic tails. Therefore, option (B) is correct.
What is a cell membrane?The cell membrane is composed of a phospholipid bilayer, with hydrophilic heads facing outward towards the aqueous environment, and hydrophobic tails facing inward towards each other. This arrangement creates a barrier that is selective in what molecules can pass through it.
Small and non-polar molecules can easily diffuse across the membrane, while larger and polar molecules require transport proteins or channels to cross. This selective permeability allows the cell to maintain an internal environment that is distinct from the external environment.
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Select all the correct answers.
This chart presents data on greenhouse gas emissions caused by human activity from 1990 to 2012. Which questions would help clarify this
evidence?
Emissions (million metric tons of
carbon dioxide equivalents)
8,000
6,000
4,000
2,000
1990
U.S. Greenhouse Gas Emissions
by Economic Sector, 1990-2013
1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012
Year
Industry
Electricity generation
Residential
Transportation
Agriculture
Commercial
Answers
The correct question is what caused the dip in greenhouse emission in transportation after 2007 and is denoted as option E.
What is a Graph?This is defined as a pictorial representation of data or variables in an organized manner.
From the graph, we can infer that there was a decrease in greenhouse emission from year 2007.
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Plate motion occurs as a consequence of convection in Earth's
crust
mantle
core
Answers
The movement of these tectonic plates is most likely caused by convection currents in the molten rock beneath the crust of the Earth. The immediate consequences of this tectonic shift are earthquakes and volcanic eruptions.
What effect does this plate movement have?Mountains will grow where plates converge or push together, and continents will split and oceans will form when plates pull apart or diverge. The Earth's geography has changed significantly over the span of millions of years as a result of the continents passively drifting with the plates.
What causes the mantle's plates to move?The plates fit tightly against one another and lie on the heated, molten rock of the Earth's mantle like fragments of a split shell.
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5. Once the caffeine is removed from the plant
materials, how might the caffeine be recovered
from the supercritical Co,?
F. by forcing the Co, back through the plant
materials
G. by lowering the temperature and pressure
of the CO2
H. by changing the polarity of the caffeine
molecules
I. by using a harsher solvent
Answers
Answer:
Option C
Explanation:
Caffeine is actually supercritical carbon dioxideLowering the temperature will cool it down and can make dry ice kinda situationPressure must be low alsoOption G is correct
What is a cephalopod?
Answers
A cephalopod is a predatory-like mollusk of the large molluscan class of Cephalopodan animals. This includes cuttlefish, octopus, squid, and/or nautilus. They are animals that live in the ocean. Additionally they eat foods like fish and jellyfish on regular and customary occasions. They sometimes possess cannibalism by eating their own species, which is absolutely crazy. Anyways, I hope that this has helped you today.. :)
Cephalopods are mollusks that live in the ocean.
Earths layers are evidence that over time earth has gradually
Answers
Answer:
Earth’s layers are evidence that, over time, Earth has gradually cooled into a solid.
Explanation:
honors biology test scientific method 25 questions thick leg muscles in dogs inheritance cannot account for
Answers
Option D. Inheritance alone may not account for thick leg muscles in dogs.
The conclusion that inheritance alone may not account for thick leg muscles in dogs is based on the data collected, which showed that dogs that lived outdoors had thicker leg muscles than dogs that lived indoors. This suggests that environmental factors, such as exercise, may also play a role in determining the thickness of leg muscles in dogs. It is possible that both genetic and environmental factors interact to determine the thickness of leg muscles in dogs, and that inheritance alone is not sufficient to explain the observed differences.
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The complete Question is:
You hypothesize that thick leg muscles are an inherited trait in dogs. Youcollect data on several dogs, and the data show that dogs that live outdoorshave thicker leg muscles than dogs that live indoors. What should youconclude?
A. Inheritance of thick leg muscles may be associated with coat thickness indogs.
B. Dogs that inherit thick leg muscles may not survive indoors.
C. Dogs with thick leg muscles may require more exercise than dogs withthin leg muscles.
D. Inheritance alone may not account for thick leg muscles in dogs.
what is the meaning of involuntary action
Answers
Involuntary actions is when something happens unintentionally or without a person's conscious control, it is said to be occurring involuntarily
What is Involuntary actions?When something happens unintentionally or without a person's conscious control, it is said to be occurring involuntarily. Usually, the autonomic nervous system or reflexive reactions control these actions.
In contrast to voluntary acts, which may be controlled consciously, involuntary actions occur without conscious thought or intentional decision-making.
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Select all of the following scenarios that would require the cell to use energy in order to move materials through its membrane.
A. The movement of materials against their concentration gradient into the cell B. The movement of large proteins into the cell The movement of water down its concentration gradient out of the cell
C. The movement of large quantities of charged molecules into the cell
D. The movement of sugar through proteins down its concentration gradient into the cell
Answers
Answer:
D
Explanation:
because turn into protein and protein pass through the cell to go to the rest of the body.
4. Which scenario is an example of allopatric speciation?
A disease ravages a large fox population, killing all members that did not have a genetic resistance to the disease
A river separates members of a squirrel population that used to occupy the same geographical area
Houseflies from a certain region migrate and interbreed with a different housefly population in a neighboring area
Hawks with thin, sharp beaks primarily eat fish and small rodents, while hawks with larger beaks tend to eat reptiles and larger birds.
Answers
A river separates members of a squirrel population that used to occupy the same geographical area, Thus, option "2" is correct.
What is Allopatric speciation?Allopatric speciation is said to occur when two groups of organisms are separated by a physical or geographical barrier. Examples of such barriers are ocean, mountain range, rivers, etc. A good example of allopatric speciation is Galapagos finch.
Different species of this bird can be found in different islands at Galapos, which is located at Pacific Ocean off South America. The ocean is barrier that isolate the species from one another.
Thus, option "2" is correct.
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will a solution of CO2 and water be acidic basic or neutral
Answers
Answer:
acidic !
Explanation:
what is the polymer for monosacchride, amino acid, triglyceride, and nucleic acid
Answers
Answer:
The polymer for monossacharide is carbohydrate. The polymer for amino acid is protein, the polymer for triglyceride is lipid and the polymer for nucleic acid are DNA and RNA
Explanation:
Macromolecule or “big molecule” in living things are consist of carbohydrate, lipid, protein and nucleid acid. Each macromolecule is called as polymer.
A polymer is made up of monomers. In other words, the monomer is a single molecule. As the monomers join together the polymer will be formed.
Macromolecule of carbohydrate is made up of numerous monomers of monosaccharide, such as glucose, galactose and fructose.
Macromolecule of protein is made up of numerous monomers of amino acid
Types of macromolecule of lipid include triglyceride, phospholipids and steroid. Triglyceride are formed by one glycerol and 3 fatty acids.
Types of nucleic acid are DNA and RNA. The macromolecule of nucleic acid (DNA and RNA) are made up of nucleotides.
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This event occurs directly following mitosis, and is called
metaphase
anaphase
prophase I
cytokinesis
Answers
Cytokinesis is the term used to describe the process that follows mitosis.
What occurs during the mitosis?A cell divides into two identical daughter cells after duplicating every component of it, including its chromosomes, during the mitotic process. The processes of mitosis are meticulously regulated by certain genes since this process is so crucial. Cancer can develop when mitosis is improperly controlled, among other health issues.
What is the purpose of mitosis?In the cell division process known as mitosis, the chromosomes multiply and are evenly distributed across the two daughter cells. Each daughter cell has a same number of chromosomes to the parent cell, making the cell type diploid. Mitosis is hence also known as equational division.
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How does kelp obtain food? (Describe the whole process of photosynthesis including inputs and outputs, equation for photosynthesis, the type of energy going in and out, where in the cells of kelp this occurs)
Answers
Kelp obtains food through the process of photosynthesis, which occurs in specialized cells called chloroplasts located within its blades.
How does kelp obtain food?The photosynthesis process begins when kelp absorbs sunlight, which provides the energy needed to power the process. Specifically, the light energy is absorbed by a green pigment called chlorophyll, which is located within the chloroplasts.
Next, carbon dioxide (CO2) from the surrounding water is taken up by the kelp through small pores called stomata, which are located on the surface of the blades. The CO2 combines with water (H2O) that has been absorbed by the kelp's root-like structure called the holdfast. Together, the CO2 and H2O react in the presence of light and chlorophyll to produce glucose (C6H12O6) and oxygen (O2) as byproducts.
In summary, kelp obtains food through the process of photosynthesis, which involves the absorption of light energy by chlorophyll, the uptake of CO2 and H2O, and the production of glucose and oxygen. This process occurs within the chloroplasts located in the blades of the kelp.
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Example of decomposer
Answers
Answer:
mushrooms are decomposers!
Answer:
Earth worms are a example or works in general
Please help i don’t know
Answers
Answer:
Independent variable.
Explanation:
The independent variable is the variable that you change throughout the experiment. The independent variable effects the dependent variable. It is usually denoted as x.
What was the climate like prior to the extinction ?
Answers
Answer:
The extinction you are referring to is unclear, as there have been several mass extinctions throughout Earth's history. However, it is generally accepted that climate has played a significant role in many of these events. Prior to some of the mass extinctions, such as the Permian-Triassic extinction and the Cretaceous-Paleogene extinction, the climate was warm and tropical with high levels of carbon dioxide in the atmosphere. This warm climate was likely a contributing factor to the extinction, as it may have led to changes in sea level, ocean circulation, and weather patterns that disrupted ecosystems and caused widespread extinction of species. However, it is important to note that climate is just one of many factors that can contribute to mass extinction events, and there are often multiple causes involved.
1 What does the codon sequence on the mRNA strand determine?
A The gene sequence of the DNA
B The amino acid sequence of the polypeptide
C The codon that is signaled
D The signaling sequence
2 What portion of the DNA is also known as a gene?
A The coding sections
B The non-coding sections
C The mRNA strand
D The polypeptide sequence
Answers
1. The correct answer is B.
2. The correct answer is A.
The codon sequence on the mRNA strand determines the amino acid sequence of the polypeptide.
The coding section is the portion of the DNA that is also known as a gene. Genes are the functional units of DNA that provide the instructions for making proteins. They are composed of coding cells, also known as exons, that contain the information needed to build the polypeptide, and non-coding sections, also known as introns, that do not.
The codon sequence on the mRNA strand is translated by the ribosome during protein synthesis. Each codon, which is a sequence of three nucleotides, corresponds to a specific amino acid. The ribosome reads the codon sequence on the mRNA strand and adds the corresponding amino acids to the growing polypeptide chain. This process is called translation.
In DNA, genetic information is encoded in the sequence of nucleotides, which are the building blocks of DNA. Genes are specific segments of DNA that contain the instructions for making a specific protein. These instructions are encoded in the sequence of nucleotides within the coding sections of the DNA, also known as exons. The non-coding sections, also known as introns, do not contain instructions for making proteins, but they play important roles in the regulation of gene expression.
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Which might you use to observe the properties of matter?
1.) taste
2.) sight
3.) smell
4.) all of the above
Answers
Answer:
1
Explanation:
it's not the answer, disregard this.
Answer: 4) all of the above
Explanation: You can use taste to taste a juice (a liquid), you can use your sight to look at rocks (a solid), and you can use your sense of smell to smell smoke (a gas)
Question 1-3
The unique properties of water enable life to exist on Earth. Which of these is a property of pure water?
It dissolves many substances
o its sold form is denser than its liquid form.
o it is slightly more acidic than air.
o It has a low heat absorption capacity:
ALL
Answers
It dissolves many substances.
Water is used in the breakdown of molecules in metabolic processes. It will dissolve what cells use for energy and give that energy in the process.
Select the correct answer from each drop-down menu. When is used to explain a set of observations, there is always a chance that an alternative explanation may be more accurate. In the practice of science, this type of reasoning is used to develop explanations. rights reserved Reset Next Jun 14
Answers
In the practice of science, hypothesis testing is used to develop explanations, acknowledging the possibility of alternative, more accurate explanations.
When hypothesis testing is used to explain a set of observations, there is always a chance that an alternative explanation may be more accurate. In the practice of science, this type of reasoning, known as critical thinking, is used to develop explanations. Scientists formulate hypotheses based on available evidence and conduct experiments or gather data to test them. However, they remain open to the possibility that their initial hypothesis may be incorrect or incomplete. By considering alternative explanations and conducting rigorous testing, scientists strive to uncover the most accurate and reliable explanations for natural phenomena. This process encourages objectivity, peer review, and the advancement of knowledge, allowing for a deeper understanding of the natural world.For more such questions on Hypothesis testing:
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Which cross could produce a child with blood type A?
a. AA x BB
b. Ao x BB
c. BB x oo
d. Ao x oo
Answers
Answer:
d. Ao x oo
Explanation:
The other crosses with A would all result in complete dominance because the alleles (other than A) from the other parent are dominant. Because option D. crosses a h o m o zygous parent with a recessive trait, the cross could produce a child with blood type A.
Ao x oo cross could produce a child with blood type A. So, the correct option is (D).
What is Blood Typing?Blood type is a classification of blood based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. These antigens can be proteins, carbohydrates, glycoproteins, or glycolipids depending on the blood group system, while antibodies are proteins found in plasma that are part of the body's natural defenses.
There are four blood groups, i.e. A, B, O and AB. Each group can be RhD positive or RhD negative, so there are 8 blood groups.
Blood group A – It has A antigen on red blood cells with anti-B antibodies in the plasmaBlood group B – it has B antigens with anti-A antibodies in the plasmaBlood group O - has no antigens, but has both anti-A and anti-B antibodies in the plasmaBlood group AB - has both A and B antigens, but no antibodiesSo, if AA x BB blood group crossed with each other, child with AB is produced.
Ao x BB blood group crossed with each other, child with AB or B is produced.
BB x oo blood group crossed with each other, child with B is produced.
Ao x oo blood group crossed with each other, child with A or O is produced.
Thus, Ao x oo cross could produce a child with blood type A. So, the correct option is (D).
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Why is it important to recognize that humans share many, but not all, characteristics with other animals?
Answers
Answer:
Because animals don’t have the same body as humans and animals are different from humand
Explanation:
They aid in our understanding of our place in the animal kingdom by allowing us to deduce evolutionary relationships between ourselves and other animals.
What is evolution?Change in the heritable characteristics of biological populations over successive generations is referred to as evolution.
These traits are gene expressions that are passed down from parent to offspring during reproduction.
Investigation reveals that there are three types of evolution: divergent, convergent, and parallel.
Charles Darwin is widely regarded basically as the discoverer of evolution. However, the historical record shows that between 1748 and 1859, the year Darwin published On the Origin of Species, approximately seventy different individuals published work on the subject of evolution.
Natural selection, a process that increases the frequency of advantageous alleles in a population, is one mechanism that drives evolution.
Natural selection produces organisms with a higher chance of survival and reproduction.
Thus, it is important to recognize that humans share many, but not all, characteristics with other animals.
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During the 1918 influenza pandemic, the world was still engaged in World War I. Movement and mobilization of troops placed large numbers of people in close contact, and living spaces were overcrowded. How could modern epidemiology have assisted with the detection and prevention of this communicable disease?
Vaccines could have been given to all military personnel.
Cities could have implemented community mitigation measures.
Social distancing could have been enforced in military living spaces.
Records of troop movement could have been used for contact tracing.
Answers
Answer:
D
Explanation:
Modern epidemiology has assisted with the detection and prevention of this communicable disease through Records of troop movement that could have been used for contact tracing.
What brought on the influenza pandemics?
It becomes due to an H1N1 virus with genes of avian beginning. Despite the fact that there isn't always a time-honored consensus regarding where the virus originated, it spread globally at some point in 1918-1919. in the united states of America, it turned into first recognized by army employees in the spring of 1918.
How did the Black demise stop?The most famous theory of the way the plague ended is thru the implementation of quarantines. The uninfected would normally continue to be of their houses and handiest depart whilst it turned into important, at the same time as those who may want to have enough money to accomplish that would depart the more densely populated areas and live in more isolation.
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Need help with bio pl
Answers
Consider the following data.
Rates for Cheetah Population from 2011 to 2012
Cause of change
2011
2012
Deaths
2
1
Births
5
4
Immigration
6
1
Emigration
8
3
Which would have to happen to keep the population growth of cheetahs in 2013 the same the previous years?
4 deaths, 7 births, 2 immigration, 6 emigration
3 deaths, 6 births, 5 immigration, 7 emigration
5 deaths, 2 births, 8 immigration, 3 emigration
1 deaths, 5 births, 3 immigration, 7 emigration
Answers
The one that would happen to keep the population growth of cheetahs in 1 death, 5 births, 3 immigration, and 7 emigrations. The correct option is d.
What is population analysis?The study of data such as births, deaths, wealth, or illness incidence that show the changing structure of human populations and the composition of a specific human population.
The components evaluated in a person's or a population's ecological footprint are food consumption, energy usage, transportation usage, and the amount of rubbish, including whether it has been recycled. I hope these are the answers and that they are useful.
The rate of the population of cheetahs as compared to the previous years is good. There is only one death and the birth rate is high.
Therefore, the correct option is d, 1 death, 5 births, 3 immigration, 7 emigrations.
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what type of chemical reactions do the 1-4 straight chain alkanes undergo?
Answers
1-4 straight chain alkanes, also known as n-alkanes, undergo various types of chemical reactions, depending on the conditions and reactants involved.
What type of chemical reactions do 1-4 straight chain alkanes undergo?Some of the common reactions that 1-4 straight chain alkanes can undergo:
Combustion: Alkanes can burn in the presence of oxygen to form carbon dioxide and water, releasing heat and energy.
Halogenation: Alkanes can react with halogens such as chlorine or bromine to form alkyl halides. This reaction usually requires the presence of a catalyst or UV light.
Nitration: Alkanes can react with nitric acid and sulfuric acid to form nitroalkanes. This reaction is also called nitration of alkanes.
Isomerization: Alkanes can undergo isomerization, where the position of the carbon-carbon bonds in the molecule is rearranged.
Cracking: Alkanes can be cracked, which means they are broken down into smaller molecules.
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Which of the following is NOT an example of a biological model? (all answers choices 2nd slide)
Answers
Answer:
pictures of different ecosystems
Explanation:
i got it right
Fracking uses highly pressurized fluids, such as water mixed with sand and chemicals, to drive open cracks that exist in underground rock. Which
statement best describes an environmental consequence of this process?
• Chemicals added to the liquid can contaminate groundwater.
O Wastewater is contaminated with oil and becomes sludge in landfills.
Water vapor is released into the air, which is considered a greenhouse gas.
Heavy metals are released into surrounding soil, poisoning local vegetation
Answers
The correct answer is that chemicals added to the liquid can contaminate groundwater.
Fracking is a method of drilling fossil energy resources, which requires a lot of water and consumes local water resources. It is pumped with high pressure water, sand and chemicals, causing high pressure to block the porous rock and release gas.
The water spill itself destroys nature from the drilling site, and may even cause earthquakes, especially due to the pumping of abundant wastewater into porous rock types such as limestone. For example, Oklahoma appears to have become a special earthquake risk area. The biggest impact of water distortion is on groundwater. In Wyoming, USA, the same chemicals found in groundwater have been found in groundwater, and some of them are toxic or carcinogenic.
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Answer:
Wait so the answer is A?
Explanation:
The bones that mainly form the orbital margin The bones that mainly form the orbital margin are
Answers
Answer:
it is the frontal bone The superior bony margin of the orbital rim, otherwise known as the orbital process, is formed by the frontal bone.