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finlep [7]
4 years ago
5

The beating of your heart is caused by _____.

Biology
2 answers:
Evgen [1.6K]4 years ago
4 0

Answer:

sinoatrial node

Explanation:

I'm pretty sure

GrogVix [38]4 years ago
3 0

Answer:

impulses

Explanation:

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The combination of chemical reactions that make up an organisms help to organize raw materials into living matter
Stells [14]

Answer:

Metabolism

Explanation:

8 0
3 years ago
Why is the Calvin cycle considered a dark reaction?
Liono4ka [1.6K]

The correct answer for this question is (D) It can proceed in the dark.

Calvin cycle is named after Melvin C. Calvin, who won a Nobel prize in chemistry for finding it in 1961. Calvin cycle take place in chloroplasts during photosynthesis and it is a <u>light-independent reaction so also called as dark reaction.</u>

The Calvin cycle proceeds in three stages:

1. Carboxylation, during which CO2 combines with ribulose-1,5- bisphosphate

2. Reduction, during which carbohydrate is formed at the expense of photochemically made ATP and NADPH

3. Regeneration during which the CO2 acceptor ribulose-1,5- bisphosphate is formed again so that the cycle continues.

3 0
3 years ago
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The genetic disease in which (1) the 23rd pair of chromosomes is always involved, (2) there are always two chromosomes that comp
velikii [3]

Answer:

<h2>Genetic abnormality</h2>

Explanation:

The genetic disease in which (i) the 23rd pair of chromosomes is always involved, (ii) there are always two chromosomes that comprise the 23rd pair, and (iii) there is always something wrong with one or both of the chromosomes is called a Genetic abnormality.

A genetic abnormality is happens  by one or more abnormalities in the genome. It can be occurred by a mutation in a single gene  or multiple genes or by a chromosomal abnormality.

5 0
3 years ago
A patient is admitted to the hospital to undergo a radical mastectomy for recurrent carcinoma of the breast (previously, she had
Olin [163]
The coder should test for any signs of that patient taking over the counter meds that will hurt him/her if they have to do surgery <span />
6 0
4 years ago
Which of the following is a good source of vitamin A?
never [62]

Explanation:

the ki composed of vitamin is bone is not decompose and not paralyzed not hard attack in your body and not attack in your anytime of the position Vitamin a food is source of client heat food

4 0
3 years ago
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