1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paul [167]
3 years ago
7

PLEASE HELP WILL MARK BRAINLEST

Biology
1 answer:
STatiana [176]3 years ago
3 0

Answer: genetics and mutation generate some of the variety that natural selection acts on

Explanation:

You might be interested in
Explain why athletes need to eat lots of complex carbohydrates during training.
Andru [333]

Answer:

The carbohydrate is one of the most important nutrients needed in the diet of an athlete, as they are important to increase their performance during physical activity and exercise.

Carbohydrate is the main source of energy needed by the brain and by our body for its proper functioning. when carbohydrates are eaten up they are broken up into small sugar unit called as glucose.

These glucose unit are stored in the muscle and liver in the form of glycogen to be used as a fuel at the time of exercise and during intense physical activity. It is known to enhance the athlete performance by delaying the fatigue and help them to compete for a longer period of time.

6 0
2 years ago
Read 2 more answers
3. A geology student describes a rock sample she is studying in class. The rock
Katen [24]

Answer: B) Yes, if sedimentary rock is moved below Earth’s outer layer and exposed to energy from Earth’s interior, it can melt into liquid rock and form igneous rock.

HEYYY!! Hope this helps! :D

7 0
3 years ago
1. What causes the autorhythmicity or action potentials of the nodal cells? a. A decrease in chloride permeability b. A gradual
Sveta_85 [38]

Answer:

The correct answer will be option-C

Explanation:

The rhythm of the heartbeat is controlled by the pacemaker of the heart called the sino-atrial node.

The SA node generates action potentials which trigger the contraction and relaxation of the atrium and ventricles. The membrane potential generation initiates by the depolarization of the cell membrane when the L type of Ca⁺² ions opens up and calcium ions enter the cell.

This depolarizes the cell until the potential threshold is reached which lies between the -40 and -30 mV.

Thus, Option-C is the correct answer.

5 0
3 years ago
Chemically speaking, enzymes are composed of chains of _________________, and they are considered to be a type of_______________
Vlad [161]

Answer:

chains of amino acid;

type of protein

6 0
3 years ago
What is the action of the vasopressin hormone released from the client's posterior pituitary gland?
kkurt [141]
<span>Vasopressin, or the other name Anti Diuretic Hormone (ADH), has the action of causing the opposite (anti) of a diuretic. I.e., it causes the body to retain sodium, thus retaining water. This has many physiological effects, the majority of which focus around enabling the body to maintain homeostasis when water intake or hydration levels drop.</span>
5 0
3 years ago
Other questions:
  • What determines fitness
    12·1 answer
  • Thomas's biological mother and father are both gifted athletes. He was adopted by a couple who had no interest in him being invo
    11·1 answer
  • What are some examples of producers? Why are they called autotrophs?
    6·2 answers
  • A blobfish is a invertebrate right?
    9·1 answer
  • What did you include in your response?
    10·1 answer
  • A scientist is looking at a cell's membrane. she notices that the membrane is composed (primarily) of a certain type of macromol
    13·1 answer
  • 3.<br>Differentiate between green and brown algae.<br>2<br>Describe the clont font​
    6·1 answer
  • A male and a female are both heterozygous for a particular trait. Which of the following represents the expected ratio of domina
    9·1 answer
  • What is the primary role of photosynthesis in the carbon cycle?
    6·1 answer
  • Anyone got the answers to the UNIT: UNDERSTANDING ORGANISMS test?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!