The biological species concept cannot be applied to fossils. Which alternate approach to identifying species would be most useful for classifying fossil organisms? A. an approach based on genetic history B. an approach based on molecular biology C. an approach based on measurable physical traits D. an approach based on use of reproductive barriers

Answers

Answer 1

Answer:

C . an approach based on measurable physical traits


Related Questions

Which of the following is the BEST description of osmosis?
A.) as active transport
B.) as requiring a transport protein
C.) as an example of facilitated diffusion
D.) as diffusion of water through a selectively permeable membrane

Answers

Answer:

D

Explanation:

Osmosis is the diffusion of water through a selectively permeable membrane.

What first caused people to consider that the continents were once one large landmass?

glacier evidence in warmer countries
continents looked like they fit together
studying the valleys of the ocean floor
similar fossils were found on many continents

Answers

Answer:

Continents looked like they fit together. Which continents contain fossils of Mesosaurus, an extinct reptile, in similar regions of Pangaea?

Answer:

B

Explanation:

Raul is learning about fetal development, but is confused about the role mitosis plays in the fetus growing. In 3-5 sentences explain what mitosis does in fetal development. Include how the same DNA is in every cell, and how the fetus grows in size.

Answers

Answer:

Most of the fetus will be born in the 40 weeks of pregnancy, but really can accurately only about 5% of babies born in due two weeks in advance or delay two weeks are normal.

Explanation:

how can we improve hydraulicity of lime? ​

Answers

Answer:

Hydraulicity and setting properties of fat lime can be improved by the addition of surkhi and grinding the mixture in a mortar-mill.

Explanation:

Hydraulicity and setting properties of fat lime can be improved by the addition of surkhi and grinding the mixture in a mortar-mill. An addition of 10 to 15 per cent of cement to a fat lime mortar also improves its quality considerably. ... The setting action of hydraulic lime is much quicker than that of fat lime.

please help, thank you!

Answers

Answer:

regulates which materials enter and leave the cell

are there other tests that could be used to determine if cyclohexanol is present in your product? give at least one test with some detail of the expected result for the presence of cyclohexanol.

Answers

One of the many tests that may be used to identify the presence of cyclohexanol in a product is that of the Lucas test.

The Lucas test is a chemical reactant test to determine the presence and level of alcoholism in a solution.  Cyclohexanol has many chemical properties as do most substances, one of which is the presence of an alcohol group.

The presence of this chemical group makes it possible to test for cyclohexanol using the Lucas test. The Lucas test will cause reactions in the presence of alcohol and transform alcohols into chloroalkanes, which tend to be nearly insoluble in aquatic solutions. Given this, a positive result will look like the solution separates into a cloudy chloroalkane-containing part on top of a much clearer layer.

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how does an autoimmune disease affect the muscular system?

Answers

Answer:

Explanation:

Myositis (my-o-SY-tis) is a rare type of autoimmune disease that inflames and weakens muscle fibers. Autoimmune diseases occur when the body's own immune system attacks itself. In the case of myositis, the immune system attacks healthy muscle tissue, which results in inflammation, swelling, pain, and eventual weakness.

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Explain please

Answers

Layer y because it’s sides and numbers

Answer:

Site A W,X,Y,Z

Site B W,Z,Y,X

Explanation:

this is true believe me

if the carrying capacity for the north atlantic cod on the grand banks of newfoundland is 500,000 tons, when do you expect that the rate of population growth would be greatest?

Answers

If the carrying capacity for the North Atlantic cod on the newfound land is 500,000 tons, then we would expect that when there are 250,000 tons of cod on the grand banks, the population growth will be greatest.

The carrying capacity speaks volumes about the maximum amount of a species population that the ecosystem can sustain permanently provided there is the availability of water, food, habitat, and other life essentials.

In terms of population ecology, it is defined as the maximum burden that the environment can tolerate.

In population ecology, populations normally decrease above the carrying capacity while they increase below the carrying capacity. A decline in population size above the carrying capacity can be caused by a variety of factors, such as a lack of sunshine, space, or food availability.

Therefore, we can conclude that If the carrying capacity for the North Atlantic cod on the newfound land is 500,000 tons, the rate of population increase will be maximum and greatest when there are 250,000 tons of cod on the Grand Banks.

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what color does iodine turn in the presence of starch?

Answers

iodine turns blue! :)

food, water, shelter, and warmth represent ________ needs in maslow’s hierarchy of needs.

Answers

Food, water, shelter, and warmth represent physiological needs in Maslow’s hierarchy of needs.

Abraham Maslow proposed and developed a theory in human development psychology titled "A theory of human motivation" in 1943.

Maslow's Hierarchy of Needs can be defined as a pyramid model which typically represents the fundamental (basic) needs of an individual, that are essential and required to be met before he or she can achieve complete growth, development and self-actualization.

The five (5) levels of Maslow's Hierarchy of Needs in a chronological order are;

Physiological.Safety.Belonging and love.Social needs or esteem.Self-actualization.

According to Abraham Maslow the psychological needs comprises:

I. Food.

II. Water.

III. Shelter.

IV. Warmth.

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If you accidently break lab equipment (beakers, test tube etc) what is the
first thing you need to do?

Answers

Answer:

You need to notify your teacher immediately.

Explanation:

The broken glass or shards of plastic can cut or injure someone.

describe the negative impacts to an ecosystem of large-scale monocultures of crop
plants and of intensive livestock production

Answers

Answer:

CHECK THIS LINK YOUR QUESTION WILL BE ANSWERED.

https://www.goconqr.com/mindmap/4978927/negative-impacts-on-an-ecosystem-of-large-scale-monocultures-of-crop-plants

Explanation:

as of may 2020, carbon dioxide levels have reached 417 parts per million. what level should they be at to have the world in a climate similar to that in which civilization first developed?

Answers

Given what we know about global carbon levels in the present and the past, we can confirm that in order to be at the level of early civilizations, the modern-day carbon level should be at 280 parts per million.

Global atmospheric carbon levels are measured in parts per million. What this means is that for every one million units of mass in the atmosphere, 280 of them were carbon. This means that in recent years, the global carbon levels in the atmosphere have doubled.

The primary cause of these increased carbon levels is industrial pollution. Chemicals are released into the atmosphere as a by-product of industrial processess. This began with a noticeable spike during the industrial revolution and has then increased without end.

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Phloem is used to transport sucrose and amino acids in plants. Sucrose is a carbohydrate. Describe the uses of carbohydrates and amino acids in plants.

Answers

Answer:

1. carbohydrates help to produce a part of cellulose. carbohydrate produces the vital source of energy, carbon skeletons for organic compounds, and storage of components.

2. Amino acids help in the ion transportation, modulation of stomatal opening, maintaining the level of detoxification.

why are antibiotics not effective against viruses?

Answers

Answer:

Viruses are different to bacteria; they have a different structure and a different way of surviving. Viruses don't have cell walls that can be attacked by antibiotics; instead they are surrounded by a protective protein coat. Antibiotics do not work on viruses, such as those that cause colds, flu, bronchitis, or runny noses, even if the mucus is thick, yellow, or green. Antibiotics are only needed for treating certain infections caused by bacteria, but even some bacterial infections get better without antibiotics.

write the function of these in your body. carbohydrates, protein, vitamin​

Answers

Answer:

Carbohydrates

- is the main source of energy of your body. They help you fuel your brain, kidneys, heart muscles, and central nervous system.

Protein

- A lot of your body is protein. Your muscles are just about all protein, and most of your organs are protein. Many of the chemical reactions in your body are speeded up by other types of protein. Your body can make some of the components of protein by itself, and it must get some of the components from outside of the body.

You need protein daily for your tissue to repair itself, normal function, and perhaps to grow.

Vitamin

- Vitamins allow your body to grow and develop. They also play important roles in bodily functions such as metabolism, immunity and digestion.

Do all cells (brain cells, skin cells, liver cells, etc) express the genes or make the same proteins

Answers

Answer:

yes

Explanation:

have a good day or night

Which of the following is another name for ova?

Answers

Answer:

d. All of the above

Explanation:is correct. post protected

Answer:

All of them are the same word

PLEASE HELP

Which of these contain

DNA and/or RNA?

Answers

Answer:

dna and rna

Explanation:

DNA is a double-stranded molecule, while RNA is a single-stranded molecule. ... DNA and RNA perform different functions in humans. DNA is responsible for storing and transferring genetic information, while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.Feb 2, 2020

2. Reproduction is the function of both_____and organisms.

Answers

Answer:

it's plants pls brainliesttt

Answer:

2. Reproduction is the function of both__Meiosis___and organisms.

Which factor does not affect photosynthesis?

Answers

Answer:

Wind velocity doesn't affect the photosynthesis. Unlike light intensity, CO2 concentration, and temperature which are the major factors influencing the rate of photosynthesis, the wind has no effect on the reactions and the rate of reactions going in the chloroplast of the leaves of the plant.

What is the surgery that involves trimming excess prostate tissue in order to treat urinary problems that are caused by an enlarged prostate?

Answers

Answer:

d. TURP is correct

Explanation: Transurethral resection of the prostate

Answer: D) Turp


hope this helps

Will give brainliet no file plz

Answers

Answer: Hey Hi Where is the question??

how does a cell get energy from an atp molecule

Answers

Answer:

Whenever a cell needs energy, it breaks the beta-gamma phosphate bond to create adenosine diphosphate (ADP) and a free phosphate molecule. Cells get energy in the form of ATP through a process called respiration, a series of chemical reactions oxidizing six-carbon glucose to form carbon dioxide.

Hope that Helps...

what happened to the molecules when you moved the slider to 0°c ?

Answers

Answer:

: Liquid water molecules move more and more slowly until they begin to stick together to form an ice crystal.

Explanation:

how do mitochondria generate and store the energy used to produce most of the atp made during aerobic respiration

Answers

Answer:
By generating a ionic (electrochemical) gradient

Answer:

The citric acid or Krebs cycle processes in the matrix of mitochondria produce a molecule called NADH. NADH is then converted to adenosine triphosphate by enzymes buried in the mitochondrial inner membrane (ATP). Energy is stored in the form of chemical bonds in ATP.

Explanation:

During aerobic respiration, how is ATP created in the mitochondria?

Oxidative phosphorylation produces the majority of the ATP produced by aerobic cellular respiration. By pumping protons across a membrane, the energy released by the O2 is utilized to create a chemiosmotic potential. This potential is subsequently used to activate ATP synthase, which converts ADP and phosphate groups into ATP.

What is the mechanism by which mitochondria store energy?

Mitochondria (plural: mitochondrion) are membrane-bound cell organelles that provide the majority of the chemical energy required to fuel the cell's metabolic activities. Adenosine triphosphate is a tiny molecule that stores chemical energy created by mitochondria (ATP).

What is ATP's energy storage mechanism?

The energy currency of the cell is ATP, or adenosine triphosphate. It retains the energy created during cellular respiration when glucose is oxidized. Energy is stored in the form of high-energy phosphate bonds, which are broken to release energy. Energy is released when ATP is broken down into ADP and Pi.

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HELP PLEASE! TY

A. How are radio waves used to create radar maps?

B. How does reflectivity help meteorologists figure out the weather shown on
radar maps?

Answers

Answer:

A. These signals have been calibrated against actual visual and location readings for the amount of rain falling and cloud water content. ... Thus the computer generates a visual image according to the reflectivity of the amount of water in colors on a map.

B. Reflectivity of an object helps indicate the amount of water that a cloud may carry. The stronger the reflected signal from the radar signal sent out, the easier the meteorologist will be able to tell what to expect. ... This in turn is interpreted by the meteorologist from past experience as what to expect in the future.

Mountains can be formed when one plate is forced under another. The plate on top folds up like an accordion and forms mountains. The plate forced under usually melts. What event is most likely to occur after much of the plate forced under has melted?

A.a flood B.a tsunami C.a volcano eruption D.an avalanche

Answers

Answer:

C. Volcanic Eruption is the answer

in which structure would you expect to find a chloroplast?

Answers

Answer:

in plant cells and eukaryotic algae

Explanation:

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