Natural selection acts on a population to produce individual organisms with different adaptations. Which is true about these adaptations? A)These adaptations are designed so every organism will be perfectly adapted to its environment B)The usefulness of these adaptations is tested by interactions in the surrounding environment. C)These adaptations are useful to every organism and their descendants in the any environment D)The usefulness of these adaptations is reduced by interactions in the surrounding environment​

Answers

Answer 1

Answer:

a

Explanation:


Related Questions

PLEASE HELP!! Easy 10 points!!

Answers

Answer: I am pretty sure is A!

What is the definition of metastasize

Answers

Answer:

Spread to other sites in the body by metastasis.

Cancer cells that leave the primary tumor and travel through body either through blood stream, limfatic system or tissues to form secondary tumors.

Which statement compares how the euglena and volvox obtain food?
A. Both the Euglena and Volvox use an oral groove to obtain food.

B. Both the euglena and volvox use chloroplasts to obtain food through

photosynthesis.

C. The Euglena obtains food through photosynthesis, while the Volvox

uses pseudopods which surround its food.

D. The Euglena obtains food using pseudopods which surround its food,

while the Volvox obtains food through photosynthesis.

Answers

Answer:

Which statement compares how the euglena and volvox obtain food? I think it's A

Answer:Both the Euglena and Volvox use an oral groove to obtain food.

If a root cap was damaged, how might this negatively affect the plant? Explain your reasoning.

Answers

If a root cap was damaged, it might start to negatively affect the plant by causing it to grow randomly, not exceed to its usual uses, and more. For understanding, the root cap protects the growing in other plants such as their tips. If this is damaged, it can cause the plants to form differently or damaged as well.

What force is acting upon the roots?

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the answer is gravitational pull.

Can some one give me a brief paragraph of how low pressure system can cause storms

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Answer:

Low-pressure areas are places where the atmosphere is relatively thin. Winds blow inward toward these areas. This causes air to rise, producing clouds and condensation. Low-pressure areas tend to be well-organized storms.

Explanation:

A low pressure system has lower pressure at its center than the areas around it . Winds blow towards the low pressure , and the air rises in the atmosphere where they meet . As the air rises , the water vapor within it condenses, forming clouds and often precipitation

If a cell normally has 32 chromosomes, what would be the results of going through mitosis?

Answers

Answer:

For mitosis, the DNA content of the daughter cells and the mother cell will always be identical. Since the number of cells have doubled, so has the DNA. The 16 chromosomes in the mother cell will be duplicated, then the duplicates split and evenly divided into the daughter cells. The 16 chromosomes in each daughter cell will be non-duplicated at first.

explain the term metemorphosis​

Answers

Answer:

Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation.

I'M SORRY IF YOU KEEP SEEING ME BUT MY CLASSES END TOMORROW AND I NEED TO GET EVERYTHING DONE TONIGHTTTTT T^T

Answers

Answer:

I believe its b im not sure tho

what temp is the coldest ? marking brainliest

Answers

0 k! the first one:)
0k = -452 f
0 f = 0 f
0 c = 32 f
-10c = 14 f

hope this helps! pls mark brainliest !

Natural and manmade events that slow or stop population growth are __. *

Life History Patterns
Population density
Demographics
Limiting Factors

Answers

Answer:

Limiting Factors

Explanation:

I looked it up for ya! :D

how is the apparent movement of stars and planets different from their actual movement? what causes this difference?​

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Answer:''For stars, almost all apparent motion comes from reflex motion, because they are so far away that their intrinsic motion appears very small. For planets, apparent motion in the sky comes from a combination of their intrinsic motion (around the Sun) and their refle

Explanation:

Sickle cell anemia is a mutation that results in abnormally shaped blood cells. Which two of the following molecules are changed as a result of this mutation?

lipids

mRNA

Sugars

Pigments

Protein

Answers

Sickle cell anemia is caused by a single letter mutation so transcription will lead to synthesis of a different mRNA molecule . The different mRNA molecule will lead to a different protein where a single amio acid is different(there is valine instead of glutamic acid)


Which of the following properly describes an ion?

O an atom or molecule that has lost or gained one or more electrons

O a molecule that has lost or gained one or more atoms

O an atom or molecule that has lost or gained one or more protons

O an atom that has lost or gained one or more neutrons

Answers

An ion is an atom/molecule that has a negative (-) or positive (+) net charge. The change in charge is ONLY due to an atom or molecule either gaining or losing an electron.

An ion is an atom or a molecule that has lost or gained one or more electrons. So the correct option is A.

What is an ion?

An atom or molecule which has a charge is referred to as an ion. Usually, the number of electrons and protons in an atom is equal. While electrons are present in the atomic shells, protons are present in the nucleus.

Because, the electrons are negatively charged and the protons are positively charged, the loss of one or more electrons would mean that the atom will now be positively charged. This will be called a positively charged ion.

Also, the gain of one electron would mean a gain of an additional negative charge. So the atom will now be negatively charged and will be called a negatively charged ion.

This is true for an atom individually or an atom which is part of a molecule. In that case loss or gain of one electron would result in the development of a positive or negative charge on the molecule.

Therefore the correct option is A.

Read more about ions, here

https://brainly.com/question/1488567

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what do the arrows in a food chain represent ​

Answers

Answer:

Essentially, it means that organisms must eat other organisms. Food energy flows from one organism to another. Arrows are used to show the feeding relationship between the animals. The arrow points from the organism being eaten to the organism that eats it.

Explanation:

brainliest please?

Is it possible for a blood type B parent and a blood type A parent to have a blood type O child?

A. Yes
B. No

Answers

Answer:

yes

Explanation:

you have your own chromosomes so that's how

Answer:

no

Explanation:

B blood type. But someone who has a B and an O version only makes the B protein. They are B blood type but can pass the O onto their kids. So two B parents can make an O child if both parents are BO.

how many ATP are made from cellular respiration

Answers

38 ATP, molecules can be made per oxidized glucose molecule during cellular respiration.

blood enters on the left side of the heart through the_____ and enters the left atrium. Then passes through the_____ to enter the left ventricle 

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Blood enters on the left side of the heart through the pulmonary veins and enters the left atrium. Then passes to the mitral(bicuspid valve) to enter the left ventricle.

Blood is a fluid component of the circulatory system that is very vital for transporting oxygen and nutrients in the body system. It comprises cells suspended in plasma.

The correct answers for the blanks are:

Blank 1: Pulmonary veins

Blank 2: Bicuspid valve

The blanks can be explained as:

The left side of the heart has an atrium that gets the oxygenated blood from the lungs through the pulmonary veins.

Oxygenated blood from the left atrium flows to the left ventricle.

Blood from the left ventricle flows to the aorta that distributes the oxygenated blood to the body parts.

To learn more about the path of the circulatory system follow the link:

https://brainly.com/question/7184632

how do depressants affect the central nervous system

Answers

Answer:

Depressant substances reduce arousal and stimulation. They do not necessarily make a person feel depressed. They affect the central nervous system, slowing down the messages between the brain and the body. They can affect concentration and coordination.

Explanation:

what is the organelle that move molecules around the cell.

Answers

Answer:

golgi membrane blahisidgxjsjsnxhjzjansnhzhannbxbshshzhnsbsbzb hsjshshzbbsjziizishsbwbxbzh hajj

Explanation:

dont oat attention to the stuff I needed 20 characters

What are each organelles labels on this diagram?​

Answers

Do you want to picture of my textbook

Which of the following is NOT true about DNA?
O It is made up of nucleotides
O It creates energy for the cell
It stores and processes information in the cell
O It makes up the genes which contain genetic material

Answers

It creates energy for the cell

Viruses, bacteria, fungi, and parasites are all different types of infectious agents that may cause disease. What do these agents have in common?
A.
They can all be spread from one organism to another.
B.
They can all be prevented with a vaccine.
C.
They can all be treated with an antibiotic.
D.
all of these

Answers

Answer:

Single celled? probably

Answer:

They can all be spread from one organism to another.

Explanation:

the correct answer is they can all be spread from one organism to another because of the process of elimination

Please help me i need this its due today 12/16/20 at 11pm and i have other work please (picture provided) and tell me if the conclusion is right please

Answers

Answer: I remember dong this back in October !  

Explanation:

Ok so boom....

Control -   Only mice near the radio

Independent - Amount of radio wave exposure

Experimental - Mice near the radio  

Dependent - Change in strength

Hope that helps

Mitosis Notes
Biology

Interphase
• DNA is _________________ (# of chromosomes doubles)
• DNA appears as ______________________ (chromatin) at the start, but change to __________________________ at the end of this phase.








Prophase
• __________________________ (cell begins to divide)
• ___________________ appear and begin to move to __________________ ________________________ of cell (only in animal cells)
• ____________________________ form between the poles (made of microtubules)
• ____________________________ starts to disappear









Metaphase
• ________________________ attach to the spindle fibers at the ________________ of the cell.









Anaphase
• ______________________________ when the ____________________________ and begin to move to opposite ends of the cell (spindle fiber ___________________).





Telophase
• ______________________________________
• Chromosomes appear as ________________________
• Spindle fibers _______________________ and disappear


Cytokinesis
• Cell membrane moves inward to create __________________________ - each with its own nucleus with __________________________

Control of the Cell Cycle
• Controlled by enzymes called _________________ and _____________________________ _______________________
1. ________________________________ (G1): decide whether the cell will divide
2. ________________________________ (G2): checks DNA replication
3. ________________________________ (M): triggers exit from mitosis

Cancer
• ___________________ division of cells
• Cancer cells ______________________________ to the body’s control mechanisms.

Apoptosis
• Programmed ______________________________
• Cells that are no longer _____________________
• _________________ fingers and toes
• __________________ cells
• _________________ leaves

Stem Cells
• _______________________ cells that can be programmed to develop into ________________________ cells
• ______________________ - 100-150 stem cells
• Adult stem cells – also called __________________ stem cells

Answers

Answer:

the firat one is 24 i think....

When the genetic material found within an offspring is diverse, what type of reproduction is responsible?

a
Sexual reproduction, because the genetic material comes from both parents
b
Sexual reproduction, because the genetic material comes from one parent
c
Asexual reproduction, because the genetic material comes from both parents
d
Asexual reproduction, because the genetic material comes from one parent

Answers

Answer:

sexual reproduction, because the genetic material comes from both parents.

Explanation:

The sperm and egg produced contain different combination of genes

If the DNA sequence is --- AAA TAT CCG TAG CAA ATG, write the mRNA sequence, tRNA anticodon sequence, and the six amino acids for this.

Answers

adenine(A) binds with uracil(U)

Thymine(T) binds with Adenine(A)

guanine(G) binds with cytosine(C)

The complementary mRNA, which contains the codons is

UUU AUA GGC AUC GUU UAC

The complementary tRNa , which contains the anticodons is

AAA UAU CCG UAG CAA AUG

The six aminoacids are

phenylalanine-isoleucine-glycine-isoleucine-valine-tyrosine

The bases tend to exist as a pair in the DNA’s double helix structure. The bases are bonded by hydrogen bonds.

Their bonds are mentioned as follows:

Adenosine (A) is paired with thymine (T) Cytosine (C) is paired with guanine (G)

However, the base thymine (T) is present only in the nucleotide of DNA and the base uracil (U) is present only in the nucleotide of RNA.

Based on the understanding of the nucleotide and central dogma concepts, the following sequences are determined:

DNA Sequence:               AAA TAT CCG TAG CAA ATGmRNA Sequence:            UUU AUA GGC AUC GUU UACtRNA anticodon:              AAA UAU CCG UAG CAA AUGSix amino acids:              PHE ILE GLY ILE VAL TYR

Six amino acids are namely Phenylalanine, Isoleucine, Glycine, Isoleucine, Valine, and Tyrosine.

Thus, the DNA sequence is used to determine the other RNA sequences and amino acids.

Learn more about DNA sequence here:

https://brainly.com/question/22662872

A student conducts an experiment to determine how the amount of water given to a plant affects its growth. Which of the following is not a constant or control for this experiment?

a. the type of plant
b. the amount of soil
c. the amount of water
d. the amount of time in the sun

Please select the best answer from the choices provided A B C D

Answers

Answer:

Its C

Explanation:

Trees that lose their leaves during winter are called
A. Deciduous
B. Fern
C. Herbacious
D. Woody
E. Evergreen

Answers

Answer:

a. deciduous

Explanation:

hope this helps :) have a great day.

Refer to the microscopic photos below.


Which cell is an onion cell and which is a cheek cell, and why?


A is a cheek cell slide because it is colorless, has a nucleus, and a cell membrane. B is an onion cell slide because it has color, has a nucleus, a cell membrane, and a cell wall.


B is an onion cell slide because it shows each cell with a nucleus, cell membrane and cell wall. A is a cheek cell slide because it shows a cell slide that does not have a cell wall, only a cell membrane as its outermost layer.


B is a cheek cell slide because it has a nucleus, a cell membrane and a cell wall as its outermost layer. A is an onion cell slide because it has a nucleus, a cell membrane and no cell wall.


A is an onion cell slide because it shows each cell with a nucleus, cell membrane and cell wall. B is a cheek cell slide because it shows a cell slide that does not have a cell wall, only a cell membrane as its outermost layer.

Answers

Answer:

Acellis the onion cell and B cell is the cheek cell because A cell has white and rectangular cell however B cell is infinite shaped and was definitely a cheek cell

Explanation:

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