What observations and evidence support the theory of evolution?.

Answers

Answer 1

Answer:

direct observation, the existence of homologies and fossils, and certain biogeographical patterns.

Explanation:

Answer 2
Fossils:
These provide solid evidence that organisms from the past are not the same as those found today, and fossils show a progression of evolution. Scientists determine the age of fossils and categorize them from all over the world to determine when the organisms lived relative to each other. The resulting fossil record tells the story of the past and shows the evolution of form over millions of years.

Molecular Biology:
Like anatomical structures, the structures of the molecules of life reflect descent with modification. Evidence of a common ancestor for all of life is reflected in the universality of DNA as the genetic material and in the near universality of the genetic code and the machinery of DNA replication and expression. Fundamental divisions in life between the three domains are reflected in major structural differences in otherwise conservative structures such as the components of ribosomes and the structures of membranes. In general, the relatedness of groups of organisms is reflected in the similarity of their DNA sequences—exactly the pattern that would be expected from descent and diversification from a common ancestor.

Related Questions

which of the following is not part of the integumentary system

Answers

Answer:

hypodermis is not part of the integumentary system.

Explanation:

because The integumentary system consists of the epidermis and the dermis.

7. ) Most of a cell's growth and activity occurs in the ______ phase.

a.) s phase
b.) m phase
c.) G0
d.) G2
e.) G1

Answers

Answer:

Interphase (A.K.A. S Phase)

Explanation:

Hope this helps.

Most of the cell's growth and activity occurs in the S-phase of mitosis. During the S-phase, a cell grows in size and genetic material duplicates. Thus, the correct option is A.

What is Mitosis?

Mitosis is the division of cell in which the DNA or the genetic content of the cell remains constant from one generation to the next generation. Mitosis consists of interphase and M-phase. During the interphase, cell prepares for division while in the M-phase the cell undergoes division.

The S phase of a cell cycle occurs during the interphase after the G1 phase, before the M-phase, and it is responsible for the replication of DNA. In this stage, the genetic material of a cell is doubled before it enters the M-phase, allowing enough amount of DNA to be split into the two daughter cells.

Therefore, the correct option is A.

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Examine the evolutionary diagram below. What does the diagram imply about the peafowl and field mouse?

Answers

Answer:

Where is the diagram? Just show it to me and I will solve the question for you with an explanation. Okay? Have a great day! :)

Explanation:

Which one of the following statements about restriction endonuclease is true

all restriction endonucleases cut DNA at random sites

all restriction endonucleases cut DNA at specific sites

all restriction endonucleases join DNA segments at specific sites

all restriction endonucleases join DNA at random sites

Answers

Answer:

the correct answer is c

Explanation:

If the average tail size of a reptile continually got smaller through generations, this would be an example of

Answers

Answer:

evolution

Explanation:

because as time goes on some organisms change and this may be called evolution

Fish have a close de circulatory system.
What does this mean?
A. The blood is not contained in tubes or pumped by a
heart.
B. They have arteries and veins that contain and carry the
blood.
C. They do not require oxygen to survive.
D. They are warm-blooded.

Answers

Answer:

B

Explanation:

A closed circulatory system means that the blood is carried through specialized pathways or tubes to other parts of the body. In the case of fish this is their veins and arteries.

Whole grains, like oats, barley, and wheat, are good sources of the B-complex vitamins. These foods are also considered very good sources of energy. Why would whole grains be good sources of energy?

A.
They are rich in fats, which are broken down and stored in the body through processes that require B-complex vitamins.
B.
They are rich in complex carbohydrates which provide energy, and their B-complex vitamins are important for transporting these carbohydrates to cells that need energy.
C.
They are rich in fats, which can only be transported to energy-producing cells with the help of B-complex vitamins.
D.
They are rich in complex carbohydrates which can be broken down for energy, and their B-complex vitamins are involved in metabolic processes that release this energy.

Answers

Answer:

the correct answer is B,

Explanation:

they are rich in complex carbohydrates which provide energy and their B complex vitamins are important for transporting these carbohydrates to cells that need energy

what are the subgroups of the phylum chordata

Answers

They are divided into three subphyla, Vertebrata, Tunicata or Urochordata, and Cephalochordata.

Answer:

Vertebrata, cephalochordata, and urochordata.

Explanation:

Vertebrata includes mammals, reptiles, birds, fish, and amphibians.

Cephalochordata includes lancelets.

Urochordata includes salps and sea squirts.

Which statements accurately describe tropical rain forests? Check all that apply.
They are found near the equator.
They have a cold, dry climate.
The temperature does not vary much.
They contain little variety of plants and animals.
The animals often depend on camouflage to survive.

Answers

Answer:

1, 3, 5

Explanation:

hope this helps :)

what is the meaning of earthquake? ​

Answers

A sudden and violent movement of the ground sometimes causing great destruction as a result of movements within the earths crust or volcanic action.

what is a simple system?

Answers

Simple Systems have few components and their behavior is in all respects fully understandable and predictable. An example would be a solid ball falling under the action of gravity through air. This Simple System consists of the ball, the air, and the gravitational force. Here we usually assume a single ball, constant acceleration of gravity, a viscous drag on the ball, and Newton’s laws. When making these assumptions, we arrive at very useful answers. We did, however, neglect many aspects. If, for example, we would ask how the behavior changes when we go from one ball, to two, to three, or even more balls that fall close to each other, our “Simple System” assumption fails. It is not sufficient to generalize from one ball’s behavior to many. Instead we need to consider the interaction of the balls through their self‐generated vortices. This makes the latter example a topic for Complex Systems Research.

5. What is the ratio of carbon:hydrogen:oxygen
atoms?

Answers

Answer:

1:2:1

Explanation:

Muscles located close to the midline of the body may be called:.

Answers

Answer: Medialis

Example: In your knee

Name the number of vertebrae that fuse together to form the sacrum.

Answers

Answer: The sacrum is made of five fused vertebrae configured as an inverted triangular bone that is concave anteriorly and convex posteriorly.

What does the word autotroph mean? Self food Self nourishment Other nourishment
PLZZ HELP!!​

Answers

any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists

If you were conducting an experiment where you were measuring how much water (in grams) a potato gained
or lost when placed in an isotonic, hypertonic, and hypotonic solution, which variable would be plotted on the
X-axis?
o types of solutions
o color of potato
O it doesn't matter
O mass of potato

Answers

Answer:

potato mass I think but this is a funny question lol

Answer:

mass of potato

Explanation:

i think this the right answer

Which statement describes elements?
1
A. All elements are solid metals.
B. All elements exist only in the liquid phase.
O C. Each element is made up of the same type of atoms.
OD. Each element is made up of different types of atoms.

Answers

The answer is D. Each element is made up of different types of atoms.

An element is made up of one type of atom. The type of atom it is made from depends on the amount of protons in an atom.

a linchen is an example of

Answers

Answer:

a symbiotic relationship between algae and certain fungi.

Explanation:

They are capable of producing their own food. The alga that is associated with fungus is a green or blue- green alga.

Small organs associated with lymphatic vessels are termed.

Answers

Answer:

lymph nodes

Explanation:

cuz small organs associated with lymphatic vessel are termed called lymph nodes

Which is an abiotic factor that can be found in a rain forest ecosystem?
O A. Air
B. Algae
C. Animals
D. Flowers
Please help

Answers

Air, abiotic means non-living and from this list, air is the only non-living thing.

Answer:

Air

Explanation:

It is non-living.

Marla is explaining to her friends the printing technique that requires the use of, glue, gum arabic , or shellac. what technique is she describing?

Answers

Answer:

stencil

Explanation:

As I was looking at my notes from edmuentum, I found that stencil is the only that mentions the glue, gumarabic, or the shellac. (Also I did the test)

Which characteristic do viruses share with living things?.

Answers

They are made of proteins and glycoproteins like cells are, they contain genetic information needed to produce more viruses in the form of DNA or RNA

Source: https://www.
Enzymes secreted by cells in the leaves of the Venus flytrap can digest
A.
proteins into amino acids
B.
sugars into starches
C.
amino acids into fats
D.
proteins into sugars

Answers

The enzymes that are in cells in the leaves of the Venus flytrap can digest proteins into amino acids.

What are enzymes?

Enzymes are proteins which perform various functions in the body. These enzymes are very helpful in metabolic activities such as the digestion of food.

In this case, the enzymes that are in cells in the leaves of the Venus flytrap can digest proteins into amino acids.

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Explain How a multicellular organism is a collection of differentiated cells.

Answers

Answer:

the picture is just your answer

Explanation:

read what's on the picture to get your answer

What direct effect do histamines have on capillaries?.

Answers

Answer: They allow capillary walls to open and become leaky. They decrease the diameter of capillaries. They prevent phagocytes from sticking to the walls of capillaries. They allow capillary walls to open and become leaky.

Explanation:

How could the origin of organisms such as dinosaurs, whose gait allowed them to move without compressing their lungs, have led to emergent properties?.

Answers

The ability of dinosaurs to move without compressing their lungs helped them to effectively produce more energy requited for other emergent properties.

What was the advantage of being able to breathe with lungs?

The lung is a special organ in the body of higher animals such as mammals and birds whose function is for gaseous exchange.

Possession of the lung gave an evolutionary advantage to organisms that have lungs as it enabled them to occupy various habitats on land as they could effectively use oxygen to produce energy.

Therefore, the ability of organisms such as dinosaurs to move without compressing their lungs helped them to effectively produce energy for other emergent properties.

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what is the velocity of a wave haveing a frequency of 25hz and a wavelength of 10 m

Answers

It should be 250mm/s

What do we call a lake created behind a dam to store water?
A. kettle lake
B. modified lake
C. reservoir
D. drainage basin

Answers

Answer:

C. Reservoir

a reservoir is a manmade lake that was created for storing water.

Explanation:

What is the function of the type of muscle that is pictured below?

Answers

Answer:

correct, its contraction and relaxation of the heart

Explanation:

by the help of pacemaker cells, contractions of our hearts are in control

Answer:

contraction and relaxation of the heart

Explanation:

c or contraction and relaxation of the heart

What types of cells perform photosynthesis

Answers

Answer:

Photosynthetic cells are quite diverse and include cells found in green plants, phytoplankton, and cyanobacteria. During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.

Explanation:

i hope this helps :)

Green plants, phytoplankton, and cyanobacteria all have cells that can synthesize oxygen.

Thus, Photosynthetic cells are highly diverse. Cells create sugar molecules and oxygen during the process of photosynthesis by using carbon dioxide and energy from the sun.

Chloroplasts, specialized cells present in plant cells, are principally responsible for photosynthesis.

The cells of the leaves of plants, notably the specialized structures known as mesophyll cells, are where photosynthesis mostly takes place within plant cells. Numerous chloroplasts, where photosynthesis occurs, are present in the mesophyll cells.

Thus, Green plants, phytoplankton, and cyanobacteria all have cells that can synthesize oxygen.

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Hello! the question is in the image below. Thank you for helping if you answer! A hand rail is installed along the stairs OThouse as shown in the figure. The table shows thedistance, in inches, of the top rail f(x) and bottomrail g(x) from the floor for the middle of eachnumbered stp x. Determine the slope of each rail.Are the top and bottom rails parallel?x f(x) g(x)1 9 4321650332357 Unscramble the five letter words below related to the theme: time. COKLC = CLOCK AYEDL =RLYAE= ITNGH = someone help me ill leave it in the comments Abraham Maslow developed his hierarchy of needs by studying people in poor health.Please select the best answer from the choices provided.TF Read the following passage from Senator Smiths Declaration of Conscience:It is ironical that we Senators can debate in the Senate directly or indirectly, by any form of words, impute to any American who is not a Senator any conduct or motive unworthy or unbecoming an American - and without that non-senator American having any legal redress against us - yet if we say the same thing in the Senate about our colleagues we can be stopped on the grounds of being out of order.What point is Smith trying to convey by pointing out this irony?A. Americans should be allowed to sue senators who make accusations against them B. McCarthys accusations are well founded considering the level of unjustified behavior in the SenateC. The double standard for senators compared to the average American is unfair and unjust D. Senators are held to an arbitrary high set of expectations compared to their peers in the House 1. What is the degree ofthe polynomialbelow?x^3 + 2x - 3x^4 + 5 +3^2 shylas resreach shows that 8 empty cans can make 1/4 Which is bigger -2.5 or -3/1 Imagine you were a teenager during the 1950s when the television, automobile, and fast food were changing American lives.Write one paragraph that explains how the television may have or may not have changed your life in the 1950s.Write a second paragraph that explains how the automobile may have or may not have changed your life in the 1950s.Write a third paragraph that explains how fast food may have or may not have changed your life in the 1950s.Refer to Vol. D pages 141-152 should you need to review.Write creatively and in your own words Which of the following best defines pathos?A. logical appealB. emotional appealC. shared beliefs and valuesD. It embodies all types of appeals Solve: h = 11.23 10 10 10 10 10.1123.001,123,00011.23000000.0001123 Need Help due in 20 mins 18) Why was there great concern about admitting Missouri as a slave state?Transporting slaves to Missouri was difficult.The Louisiana Purchase had required that there be no slave states within the territory.There would be more slave states than free states.It meant that Maine could not have slaves.21) What was the key message of the Monroe Doctrine?Religious practices would be encouraged by the government.A trade alliance would be established with England.Slavery would be maintained throughout the South, but would not be permitted in the North.Colonization by European countries in the Americas would not be tolerated. Which of the following statements best describes P on the number line shown? P = -1.5 P > -1 P 0 Suppose you were writing an argumentative paper claiming that OKCPS should remove their dress code policy. Which of the following resources would best support your claims?O A newspaper article discussing the dress code changes in local school systems in Phoenix, AZO A collection of social media posts from students expressing their frustrations with the dress code policyO An article from a scientific journal discussing the importance of freedoms of expression for teenagersO A copy of the dress code policy from the student handbook Solve this equation. Type your answer in the box below.12x7=13(x12)x= BlackBerry, a one-time leader in secure cell phones, lost its edge. Without significant upgrades or innovation, the company quickly lost market share to iPhones and Android devices. The company attempted to imitate these advances with the Blackberry Storm product, which flopped. Blackberry was criticized as trying to leverage capabilities beyond its core competencies. Which of the following tools should Blackberry use to regain a scope of its core competencies and determine potential sources of competitive advantagea. External environmental analysis b. Competitor analysis c. Industry analysis d. Value chain analysis If [tex] \frac{1}{x} + \frac{1}{y} + \frac{1}{z} = 0[/tex]and [tex] {x}^{2} + {y}^{2} + {z}^{2} = 25[/tex] , then x + y + z will be? Z Why does martin attitude change? Need help please about social studies, it's urgent. Thank youTypically a central state a) is governed by others. b) is tolerant of other religions. c) treats its new conquest as a subject state.d) all of the above