How can DNA be used as an evolutionary clock?How can DNA be used as an evolutionary clock?

Answers

Answer 1

Answer:

Because of the History of DNA Mutations

Explanation:

The DNA of an organism is what causes different genetic mutations and adaptations in an organism. The DNA remains similar and had been evolving for many years but mutations can spring up at any time.


Related Questions

Underground water is an example of

A) a hidden water source

B) a untapped water
source

C) an unusable water source

D) a high salinity water source

Answers

Answer:

i think its a hidden water source

_______________________ is an animal's ability to blend into its surroundings.

a
artificial selection
b
evolution
c
natural selection
d
camouflage

Answers

D camouflage I’m assuming because that’s what camouflage is used for.

[tex] \huge \color{magenta}{ \boxed{ \large \sf \color{blue}{d. \: Camouflage}}}[/tex]

Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's wings.

1. Which of the following best explains how
behaviors, such as swarming and flocking, help
protect organisms?
a. Individuals in swarms or flocks act as decoys
to distract predators.
b. The movement and size of the swarm
or flock confuses predators.
c. Working together in swarms or flocks
requires less energy
d.The size of most swarms and flocks
can overtake larger predators.

Answers

d

The size of most swarms and flocks can overtake larger predators.

Please please help me!!!

Answers

Answer:

1. Hormones

2. Reproductive system

Explanation:

the endocrine system is responsible for producing hormones, and the hormones produced by the pituitary gland regulate reproductive systems.

What is an example of an object that affects gravity
on Earth?

Answers

Answer:

the object that affects gravity is call gravinaltational force which acts on the way human stay on earth

Explanation:

What changes when a cell divides into two daugther cells to make it easier for the cells to exchange materials across the surface of the cell? A. Cell division does not make it easier to transfer materials across the cell surface. B. The new cells move materials faster. C. Each new cell has an increased surface area to volume ratio​

Answers

The new cell has an increased surface area to volume ratio​ is a process that makes easier the exchange of materials across the surface of the cell (Option C).

What is cell division?

Cell division is the process by which cells generate new daughter cells, which may be due to mitosis or meiosis in higher organisms.

Cell division is able to increase the surface/volume ratio and therefore it facilitates the movement of materials in the resulting cells.

In conclusion, news cell has an increased surface area to volume ratio​and it makes easier the exchange of materials (Option C).

Learn more about the cell division here:

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Which organisms break down decaying organisms and produce an inorganic nutrient pool in ecosystems?
Group of answer choices

secondary consumer

decomposers

primary consumer

producers

Answers

Answer:

Decomposers

Explanation:

Decomposers eat decaying or dead organisms to produce the nutrients.

Which of the following creates an
allluvial fan
A The buildupci sediment at the mouth of a
3. The seriment deposits by the side of flooding
C. The sticons that leave deepvalleys and
D. There is by ters,

Answers

D is the answer to ur question

Absorbe nutrientes por medio de micro vellosidades que recubren y aumentan la superficie de absorción

Answers

Sobre la pregunta:

Cucigrama. Pregunta 1 vertical. Absorbe nutrientes por medio de micro vellosidades que recubren y aumentan la superficie de absorción

Answer:

Intestino delgado

Explanation:

El intestino delgado es el organi mas largo del tubo digestivo, pudiendo medir 7 metros de longitud y 3 cm de diametro. Se caracteriza por estar sumamente plegado sobre si mismo. La primera porcion, llamada duodeno, recibe secresiones de glándulas biliar y pancreática, y las mezcla con enzimas digestivas. Esta mezcla se encarga de degradar la comida y transformarla en sustancias solubles, como amino ácidos.

Es en el intestino delgado donde ocurre la absorción de nutrientes.  Las paredes intestinales estas cubiertas por microvellosidades que aumentan la superficie de absorción.  

Las microvellosidades son células que componene el epitelio columnar, y que extienden proyecciones hacia el lumen del organo.  

 

When the ocean absorbs CO2 it leads to what?

Answers

Explanation:

Each liquid falls somewhere along a scale with acid at one end and alkaline at the other. Normally, ocean water is less acidic than fresh water. Unfortunately, as the ocean absorbs more and more carbon dioxide from the atmosphere, it becomes more acidic. Lemon juice is an example of an acidic liquid.

Answer:

If the ocean absorbs a lot of CO2 it is most likely to become acidic

What kind of virus caused the 1918 pandemic?

Answers

Answer:

The answer is Spanish flu

Answer:

H1N1 virus with genes of avian origin

Explanation:

The outbreak was caused by an influenza type, where the subtype of it is know as H1N1 virus.(. Characterization of five of the eight RNA segments of the 1918 influenza virus indicates that it was the common ancestor of both subsequent human and swine H1N1 lineages, and experiments testing models of virulence using reverse genetics approaches with 1918 influenza genes have begun in hopes of identifying genetic features that confer virulence in humans..... EXTRACTED FROM A TEXT FOR MORE INFO)

The female reproductive and endocrine systems work interactively for which main purpose?

A. To control hormone levels to prepare the body for pregnancy

B. To maintain homeostasis by removing waste products from the body

C. To release neurotransmitters during times of stress

D. To exchange gases to support cellular aerobic respiration

Answers

The answer is definitely A.

what is the name of the fluid found in the gall bladder​

Answers

Answer:

"Bile" is what that fluid is called

Ecosystems rely on interactions between both biotic and abiotic
factors. Which of the following is considered an abiotic
factor?
-consumers
-plants
-water
-bacteria

Answers

Answer:

water is an abiotic factor

What is the advantage and disadvantage of drug abuse​

Answers

there are danger and you call someone to help you

Fill in the Blank
Complete the following sentence.
Before a plant grown in a greenhouse can be planted in a field or garden, it should first be ______ of.

FiLl In ThE bLaNk

Answers

Answer:

hardening

Explanation:

experiment yeast fermentation ,what is the purpose of boiling the glucose solution earlier?​

Answers

Answer:

The correct answer is - to sterilize it and remove any oxygen.

Explanation:

Boil the glucose solution to sterilize it and remove any oxygen, leaving behind the glucose needed for anaerobic respiration. High temperature kills all the microbes and sterilizes the solution.

Boiling the glucose solution earlier also helps in removing the oxygen from the solution for preparing the anaerobic respiration in the experiment desired. Sterilization of the solution also helps it in avoiding any microbes to present in the solution and affect the experiment.

A student is given a list of traits and is asked to organize them in a Venn diagram as shown below.

Which traits should the student put in section II (Both)?
1 a scar and blood type
2 tiger's stripes and wolf's social status
3 musical talent and wolf's social status
4 musical talent and skin color

Answers

Answer: The correct answer is option B) a scar and wolf's social status.

The acquired traits can be defined as the traits, which are only influenced by the environment of the organism. The acquired trait cannot be passed down to the offspring, as they are not genetically determined. A scar and the social status of any organism is dependent on the behavior of the organism to the environment, no genes code for both of these characters. So, scars and Wolf's social status is an acquired trait.

Explanation:

There is no way to get rid of invasive species, so there is no reason to even attempt.
A.) True
B.) False

Answers

Answer:

False

Explanation:

Scientists have tried to remove them or kill them.

A scientist is examining cells under a microscope. Which would best help the scientist identify the tissue as plant or animal?

A. The presence or absence of a cell wall

B. the presence or absence of DNA

C. Plant cells would be green

D. Animal cells would contain a nucleus

SORRY FOR THE LITTLE POINT PLEASE ANSWER ITS DUE IN 2 MINUTES ​

Answers

Answer:

I think the answer is A

Explanation:

The presence or absence of a cell wall is examining cells under a microscope.

What is Cell wall?

Cell walls are a specific type of extracellular matrix that cover every plant cell. Many of the traits that set plant cells apart from animal cells are caused by the cell wall.

The cell wall serves a variety of activities that are essential to plant life, despite being frequently thought of as an inert product used only for mechanical and structural purposes.

These include:  giving the living cell mechanical defense and a chemically insulated environment; offering a porous medium for the circulation and distribution of water, minerals, and other small nutrient molecules.

Therefore, The presence or absence of a cell wall is examining cells under a microscope.

To learn more about Cell wall, refer to the link:

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I Need heelp really bad plz someone

Answers

Answer:

the answer is sunlight

Explanation:

got it correct on the test

Home land of Shorea robusta is
a) alpine zone
b) temperate zone
c) tropical zone d) sub alpine zone​

Answers

Answer:

c) tropical zone

Explanation:

7. Mutations in DNA occur when there is a change in the base-pair sequence of a gene. Which of these is
not an accurate statement about mutations?
A. Most mutations occur when a cell copies its DNA for cell division.
B. Mutations can involve adding, removing, or substituting genes.
C. Mutations always cause a change in the phenotype of the organism.
D. Mutations can be beneficial.

Answers

Answer: C

Explanation: None

C. Mutations always cause a change in the phenotype.

The cell cycle is the life of the cell from the time it is first formed from a dividing parent cell until its own division into two cells

Answers

Explanation:

cell cycle is made up of three main parts: interphase, mitosis, and cytokinesis. Most biologists agree that interphase makes up the period of time that a cell would be preparing for cell division. Cells spend the majority of their lives in this stage. During interphase a cell is going to be growing, replicating its genetic material and essentials to carry out cell division, and proofreading the genetic material to ensure replication has occurred correctly. This doesn’t sound like much, but it’s actually the longest part of the cell cycle. Once this is complete, the cell will then go through cell division and, theoretically, split into two new cells (cytokinesis).

How cytokinesis works will depend upon the type of cell that is dividing. Here is an image that summarizes the differences in cytokinesis in plant cells and animal cells, which is the classic example used in many introductory biology courses:

In order for water to collect in earths atmosphere and form clouds it must first undergo what process?

A) condensation

B) convection

C) evaporation

D precipitation

Answers

Answer:

The answer is D: Precipitation

_____________________________ is famous for his work on natural selection.

a
Charles Darwin
b
Henry Cavendish
c
Babe Ruth
d
Isaac Newton

Answers

Answer:

a

Charles Darwin

Explanation:

Which gas is used by humans in the process of cellular respiration?

Answers

Answer: Oxygen

Explanation:

During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates. Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.

Hope This Helps!

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Answer:

oxygen

Explanation:

we breathe it in during cellular respiration

Which of the following is NOT a type of wetland?
a: marsh
b: bog
c: swamp
d: pelagic

Answers

I think it is d because the other places are of course wet lands.

Explanation:

i have no clue, but good luck, hopefully you pass the test

Explain how advancements in engineering and technology over the years have allowed scientist to learn about mars and earths moon.

Answers

Telescopes on Earth and in orbit around Earth provide scientists with information about our solar system. That information is used to plan where spacecraft fly and where they “point their cameras.” NASA and other agencies send robotic spacecraft to fly by, orbit, or land on other planets and moons.

Which animal is a tertiary consumer in this food chain?

Answers

Yes there is it snake

Answer: EL ANIMAL QUE ES CONSUMIDOR TERCERIANO  ES LA SERPIENTE

xplanation:PORQUE ES CARNIVORO

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