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aleksandrvk [35]
3 years ago
7

Meiosis 1 begins with a?

Biology
1 answer:
elixir [45]3 years ago
3 0
I think the letter is (D)
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Help me ALL of these, and you get brainiest! (:
Evgen [1.6K]

Answer:

1. Circulatory System

2. Respiratory System

3. Endocrine System

4. Nervous System

5. Urinary/ Excretory System

Explanation:

1. Circulatory System- The heart pumps blood and blood vessels such as arteries and veins, transports the blood to every part of our body providing organs and muscles with nourishment.

2. Respiratory System- This system maintains our breathing. It supplies the body with oxygen for cellular respiration.

3. Endocrine System- The glands of the endocrine system secrete chemicals called hormones that regulate most of the processes in our bodies like growth, reproduction, metabolism, etc...

4. Nervous System- The entire nervous system controls all of the other systems of the body and it also transmits information to the brain, such as pain and external sensations.

5. Urinary/Excretory System- This system is responsible for eliminating waste products of metabolism and other materials from the body that are of no use.

5 0
3 years ago
Read 2 more answers
Peripheral resistance depends on all of the following factors except __________.
pantera1 [17]

Options for the question have not been given. They are as follows:

blood vessel length

blood viscosity

blood vessel diameter

blood colloid osmotic pressure

Answer:

blood colloid osmotic pressure

Explanation:

  • Peripheral resistance is the resistance to blood flow by blood vessels.
  • It is directly proportional to blood vessel length as more the distance to travel, more will be the resistance.
  • It is also directly proportional to blood viscosity as more energy is required to push viscous material.
  • It is indirectly proportional to blood vessel diameter. More the diameter of the vessel, easier it is for the blood to pass.
  • However, it does not depend on blood colloid osmotic pressure. Colloid osmotic pressure is created by the protein components of blood and they do not have any direct impact on blood flow.
6 0
3 years ago
1. what is the difference between  facts theory and hypothesis
ioda

Answer:

1. Fact: Observations about the world around us. Example: “It’s bright outside.”

Hypothesis: A proposed explanation for a phenomenon made as a starting point for further investigation. Example: “It’s bright outside because the sun is probably out.”

Theory: A well-substantiated explanation acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation. Example: “When the sun is out, it tends to make it bright outside.”

3. As a field of science, biology helps us understand the living world and the ways its many species (including humans) function, evolve, and interact. Advances in medicine, agriculture, biotechnology, and many other areas of biology have brought improvements in the quality of life.

5. Its the ending answer/result of the experiment.

this is what i could get, sorry its not all of them

8 0
3 years ago
5(a+4)-6a+1=12 plz help its due today
irga5000 [103]

Answer:

a = 9

Explanation:

5(a + 4) - 6a + 1 = 12

5a + 20 - 6a + 1 = 12

5a - 6a + 20 + 1 = 12

-1a + 21 = 12

     -21      -21

--------------------------------

-1a = -9

/-1     /-1

---------------------------------

a = 9

3 0
3 years ago
Read 2 more answers
In scientific inquiry, when competing hypotheses have been eliminated, a hypothesis may be elevated to the status of a scientifi
svetlana [45]

Answer:

Scientific Theory

Explanation:

4 0
2 years ago
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