How could one determine if two
unidentified organisms share a common
ancestor?

Answers

Answer 1

Answer:

Evolutionists determine that two organisms have a common ancestor is by looking at fossil evidence in different rock layers using the law of Superposition (Oldest layers are on the bottom, newest are on the top) and compare the skulls or other bones to each other in order of oldest to newest (or newest to oldest). Another way to determine this is to examine the amount of DNA a certain species shares with another species. An example of this would be that Humans share roughly 90% of our DNA with chimpanzees or the other Great Apes.

Explanation:

DNA

They can look at the DNA it's the most common one.

There are 4 pieces of evolution and they are

Fossils , Geography , Embryos / DNA , Anatomy

Fossils: Physical remains of species , Determine age, location,  environment

Deeper layers = older

Geography: Proves species share common  ancestors, depending on where

they live

DNA: BEST evidence because it’s the  MOST ACCURATE

Similarities in the early stages of  development

Similarities in DNA

More similarities = closely related

More differences = not related

Anatomy: Compare body parts of different  species to see how they evolved

3 different structures:

Homologous (same structure,  different function)

Analogous (similar structure,  different organisms)

Vestigial (body parts that no  longer serve a purpose)

All of that are in evolution

Hope it helped! ( Gave u my biology notes :D)


Related Questions

How does DNA in cells determine an organism's complex traits?

A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism

B. DNA separates into long single strands that make up each part of an organism

C. DNA produces the energy an organism needs in order to grow

D. DNA folds into the nucleus of each of the cells of an organism


PLEASE HELP!!

Answers

I think answer should be d. Please give me brainlest I hope this helps let me know if it’s correct or not okay thanks

Answer:

A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism

Explanation:

2x+3y=12
x-5y=-7
solve simultaneously ​

Answers

Hey this answer your question

There is a belief that there are as many neurons in the human body as there are stars in the Milky Way Galaxy. Do you believe this? How would you react on this?

Answers

Answer:

I do believe this. If you take the amount of neurons in the average adult body and expand them to the size of a say a blueberry It would expand to be the approximately the size of the sun

Explanation:

The given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.

What are Neurons?These are the nerve cell that is found in the brain and nerve tissue in the body.It has been estimated that there are 100 billion neurons in the human brain which is about the number of stars in our Galaxy.The human brain is very complex and this complexity comes from such a huge number of neurons.

Therefore, the given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.

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together with Fr. Diego Luis de San Vitores, SJ , where did they go to evangelize? What heroic act merited him a martyr's crown?​.​

Answers

Answer: The spread of Christianity among the Jews was the heroic act of San Vitores.

Explanation:

He was murdered on the island of Guam on 2 April 1672. He brought Christianity to the CHamoru people. He was killed  by the chief's daughter Mata' pang with a sword. His conversion efforts were commendable. The CHamorus people  welcomed San Vitores and hundreds of people were readily converted into Christians readily. Today Catholism is the main religion in Guam.

the final phase of mitosis characterized by the separated chromosomes reaching the poles
of the cell. The nuclear membrane and nucleolus begins to reappear around each set of
chromosomes

Answers

Answer:

Telophase

Explanation:


Mass measures the amount of ______ in a substance
or an object.

a matter
b space
c gravity
d vapour

Answers

Answer:

theianswer to this is A. Matter

Describe the effects of estrogen on
the developing female reproductive
system.

Answers

Answer:

In females, estrogens affect the ovaries, vagina, fallopian tubes, uterus, and mammary glands. In the ovaries, estrogens help to stimulate the growth of the egg follicle; they also stimulate the pituitary gland in the brain to release hormones that assist in follicular development.

What type of mutation is shown in the example below?
Original DNA: ATCGTCGTCGT
Mutated DNA: ATCGTCGTGT

Answers

It is a deletion mutation

What is the function of Primase?

Answers

Answer:

Explanation:

"Primase is an enzyme that synthesizes RNA sequences called primers.  primase produces RNA molecules, the enzyme is a type of RNA polymerase."

Hope this helps :)

Convection occurs because heated material becomes ____________________. A less dense and rises B denser and rises C denser and sinks D less dense and sinks

Answers

Answer: A less dense and rises

Explanation:

Convection is a type of heat transfer happens when there is a movement of fluid (liquid or gas) in which convection currents are produced due to the movement of hot fluid upwards and cold fluid downwards. This happens as the density of hot fluid decreases due to presence of less number of mmolecules per unit volume. As the hot liquid becomes less dense, it starts moving upwards.

Thus convection occurs because heated material becomes less dense and rises.

Each trait of a plant is determined by
one gene
one dominant gene
a pair of genes
an allele

Answers

Answer: an allele .

Explanation:

The_______
is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah
Jesus directed them not to tell anyone else.

Answers

Answer:

Messianic secret

Explanation:

The Messianic secret is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah. Jesus directed them not to tell anyone else.

Hope this helps!

pls mark brainliest :)

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1. Which criteria are used to classify amphibians into orders?

Answers

Answer:

They are classified into three orders: frogs and toads, salamanders and newts, and caecilians.

Approximately 8,100 species of living amphibians are known. First appearing about 340 million years ago during the Middle Mississippian Epoch, they were one of the earliest groups to diverge from ancestral fish-tetrapod stock during the evolution of animals from strictly aquatic forms to terrestrial types. Today amphibians are represented by frogs and toads (order Anura), newts and salamanders (order Caudata), and caecilians (order Gymnophiona). These three orders of living amphibians are thought to derive from a single radiation of ancient amphibians, and although strikingly different in body form, they are probably the closest relatives to one another.

6) Pamela went to the doctor for her yearly check-up. They discovered that she had decreased
estrogen and progesterone levels. After a few months of medication, her levels returned to
normal. She stressed to her doctor that she wanted a child. Her doctor said that with the
hormonal supplements, she should be able to conceive a child.
What systems are affected?
Why?

Answers

Answer:

strogen and progesterone levels

Explanation:

she stressed to her doctor

A scientist is treating rice plants with a chemical that causes mutations. What is the possible benefit of this treatment? A. clones B. transgenic plants C. increased genetic variation D. increased hybridization

Answers

Answer:

Explanation:

Its either B or C, look closely at the question and at the answers, you can narrow it down from then.

A scientist is treating rice plants with a chemical that causes mutations. The possible benefit of this treatment is transgenic plants. Hence, the correct option is B.

What is mutation?

A mutation is a change in the DNA sequence that makes up a gene. It can result from  errors in DNA replication or exposure to mutagenic agents such as chemicals or radiation, or from spontaneous changes.

Transgenic plants are the plants that have been genetically modified to express specific traits or traits that are not found in the original species. This is done by introducing foreign DNA or chemicals that change the plant's genome. This process is called genetic engineering.

Transgenic plants have become an important tool in agriculture and biotechnology, providing new opportunities for food production, environmental protection and economic growth. Hence, the correct option is B.

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What is the role of protein channels in the cell membrane?

Answers

Answer:

protein channels to cell membranes

Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?

Answers

Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?

The answer is C ( stratus, altocumulus, cirrus )

Answer: it’s C

Explanation:

Compare the planets Mars and Saturn. Describe how their common characteristics are similar.

Answers

Answer:

Both Mars and Saturn have rings.

Mars And Saturn both have rights with them

Help me ASAP! CORRECT ME IF AM WRONG TY BOYS AND GIRLS

Answers

Answer:

CORRECT

Explanation:

Why are the rocks on the bottom folded but the top ones are not? What could’ve caused this?

Answers

Answer: The basic answer could be because of the tectonics plates.

Explanation: Because when two forces act towards each other from opposite sides, rock layers are bent into folds.

Typically, sedimentary rocks are arranged in layers, one on top of the other, the oldest items are listed last, followed by the youngest, this is the concept of "superposition.

Why are rocks folded?

Erosion has removed the top layers of the rocks, resulting in the formation of valleys and hills, the top layer might be penetrated with sufficient power. The plates might shift due to erosion, and plate movement.

Many of the stratified rocks, however, are no longer horizontal, we know that sedimentary rocks that are not horizontal either were created in unique ways.

Therefore, more frequently, were shifted from their horizontal position by subsequent processes, such as tilting during episodes of mountain construction, thanks to the Law of Original Horizontality.

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Explain the production of urine, include the processes of Ultra filtration and selective reabsorption.

Answers

Answer:

Urine Is 95% Water

Explanation:

The Glomerulus Filters Water and Other Substances from the Bloodstream

The Filtration Membrane Keeps Blood Cells and Large Proteins in the Bloodstream

Reabsorption Moves Nutrients and Water Back into the Bloodstream

. Waste Ions and Hydrogen Ions Secreted from the Blood Complete the Formation of Urine

How does the structure of DNA explain chargaff's rule?

Answers

Answer:

Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio (base pair rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine

Chargaff's Rule explains that in the natural DNA, the total number of guanine equals to the number of cytosine and the total number of adenine equals to the number of thymine. This tells about the base pair composition of DNA molecule.

What is Chargaff's rule?

Chargaff's rule states that in the DNA molecule of any species or organism, the total amount of guanine residues should be equal to the amount of cytosine residues and the amount of adenine residues should be equal to the amount of thymine residues. A stoichiometric ratio of 1:1 of purine and pyrimidine bases i.e., A + G = T + C should be fulfilled.

Chargaff's rule describes the ratio of the various nitrogenous bases present in the DNA molecule. It aids in the determination of the structure and composition of DNA in living organisms. It is constant for a species.

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Inherited used in a sentence

Answers

I inherited my parents genes.

The difference between active and passive transport is that–

A. Passive transport requires energy to move molecules up a concentration gradient, and active transport does not.

B. Passive transport can only move specific particles across a membrane, and active transport can move any particle.

C. Active transport requires energy to move molecules up a concentration gradient, and passive transport does not.

D. Active transport moves molecules in animal cells, and passive transport moves molecules in plants.

Answers

Answer:b

Explanation:

Answer:

moves particles from an area of low concentration to an area of high concentration.

Explanation:

edge

please help!! 15 points

Answers

Answer:

The answer is the age of the rock.

Explanation:

Scientists can use their tools and DNA to figure out the age of rocks.

(Many points) PLS HELP QUICK dont guess answer pls ad dont say random answers for points pls

Cheng made a chart to list the functions of certain fish structures.

(The image below)

Which headings correctly complete the chart?

X: Fin
Y: Swim bladder
Z: Lateral line
X: Fin
Y: Lateral line
Z: Swim bladder
X: Lateral line
Y: Swim bladder
Z: Fin
X: Lateral Line
Y: Fin
Z: Swim bladder

Answers

Answer:

x:fin

y:lateral line

z:swim bladder

Answer: The answer for this question is Fin for x  Lateral line for y and

swim bladder for z

Explanation:

I took the test

What is one way during the G0 phase that a mistake during the cell cycle could result in problens for the G0 phase?​

Answers

The G0 phase (G sub zero) or the zero of G is a period of the cell in which it remains in a vegetative state. The G0 phase is seen as a distinct and quiet stage that occurs outside the cell cycle. This phase is related to the "Post-Mitotic" state because they are in a non-dividing phase outside of the cell cycle; some cell types (such as neurons and heart muscle cells) when they reach maturity (that is, when they are terminally differentiated) become post-mitotic (enter the G0 phase), and perform their main functions for the rest of the life of the organism. Poly-nucleated muscle cells that do not undergo cytokinesis are often considered G0 phase cells.

The G0 phase (G sub zero) or the zero of G is a period of the cell in which it remains in a vegetative state.This phase is related to the "Post-Mitotic" state because they are in a non-dividing phase outside of the cell cycle.

Which muscle cells are often considered as G0 phase cells?

Poly-nucleated muscle cells that do not undergo cytokinesis are often considered G0 phase cells.The G0 phase is seen as a distinct and quiet stage that occurs outside the cell cycle.

Mitosis is the procedure with the aid of which a mobile replicates its chromosomes after which segregates them, producing two identical nuclei in training for mobile division. Mitosis is generally followed by way of same department of the mobile's content material into  daughter cells that have identical genomes.

The two phases of cell cycle are interphase in which DNA replication occurs, 3 stages of interphase are: G1 phase, S phase and G2 phase and mitotic in which division occurs phase. Mitosis occurs after the completion of DNA replication and doubling of chromosome number and cell contents and after mitosis, two daughter cells are produced of equal number of chromosomes.

Therefore, The G0 phase (G sub zero) or the zero of G is a period of the cell in which it remains in a vegetative state.This phase is related to the "Post-Mitotic" state because they are in a non-dividing phase outside of the cell cycle.

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Write any three differences between infectious and non- infectious disease


please its aurgent ​

Answers

Answer:

Infectious diseases are transmitted from person-to-person through the transfer of a pathogen such as bacteria, viruses, fungi or parasites. A non-infectious disease cannot be transmitted through a pathogen and is caused by a variety of other circumstantial factors.

Explanation:

How did the invention of the microscope contribute to knowledge about 1p living things?​

Answers

Answer:

It made it possible for people to discover and learn about cells.

Explanation:

The cell is the basic unit of structure and function of all living beings. A cell can also be defined as a morphological, functional, and reproductive unit of all living beings.

Every living organism is made up of one or more cells. All cells are created from an existing cell. A cell is the smallest unit that has all the characteristics of life. A set of cells of similar or the same appearance, embryonic origin, and function is called tissue.

The science that studies the cell is called cytology. There are organic and inorganic compounds in the cell. Of the inorganic compounds, water and salts are the most common. Organic compounds in the cell contain carbohydrates, fats, and proteins.

When a human cell divides in mitosis, the two daughter cells will each have: _____

Answers

Answer: In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.

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