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Blizzard [7]
3 years ago
7

Your normal heartbeat before exercise is called your ____________________.

Biology
2 answers:
defon3 years ago
6 0

Answer:

Heart rate i think

Explanation:

sergij07 [2.7K]3 years ago
4 0

Answer:

it should be resting heart rate, but i dont see that as an answer...

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The ratio of estrogen to progesterone remains constant throughout pregnancy into labor. false/true
Lady_Fox [76]

False,

In order to start labor, estrogen increases and progesterone decreases.

Estrogens are a class of hormones that are essential for women's healthy sexual and reproductive development. They are sex hormones as well. The majority of estrogen hormones are produced by a woman's ovaries, however minor quantities are also produced in modest amounts by the adrenal glands and fat cells.

Progesterone is a member of the progestin drug class (female hormones). By lowering the level of estrogen in the uterus, it functions as a component of hormone replacement treatment. By substituting for the natural progesterone that some women lack, it helps to initiate menstruation.

To know more about pregnancy, click on the below link,

brainly.com/question/14353919

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5 0
2 years ago
Which of the following is a factor that determines the rate of impulse propagation, or conduction velocity, along an axon?a) len
Alexxx [7]

Answer:

c) degree of myelination of the axon

Explanation:

Axon conduction velocity can be defined as the speed at which an electrochemical impulse propagates down an axon.

Factors that determines the rate of conduction velocity are:

  • axon diameter-larger diameter axons have a higher conduction velocity
  • sheeth-a myelin sheath increases the rate of impulse propagatio

Different types of neurons will have different speed of propagation because of their different properties and because different types of information are sent.

6 0
3 years ago
Do pollen grains have the same number of chromosomes as a regular plant cell?
finlep [7]

The pollen grain is actually the male gametophyte generation of seed plants. Inside the anther, pollen mother cells divide by meiosis to form pollen grains whose nuclei contain half the number of chromosomes characteristic of the parent plant. 

(hope that helped answer the question)

8 0
3 years ago
What is the main energy source that drives global climate?
marusya05 [52]

Answer:

<em>The correct option is A) solar energy</em>

Explanation:

Solar energy can be described as the energy which comes from the Sun. This energy drives many chemical reactions such as the reactions of photosynthesis and for generating electricity.

The solar energy is thought to meet the potential of all energy required in the future. The solar energy is the reason for all the climatic conditions which arise in a particular area.

7 0
3 years ago
The type of cancer that is characterized by abnormal increase in the number of white blood cells is
lesya [120]
The type of cancer is Leukemia. 
4 0
3 years ago
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