The best answer is b. 4
The human heart has four chambers - two atria and two ventricles.
1. Right atrium - receives oxygen-poor blood from the body and pumps it to the right ventricle.
2. Right ventricle - pumps oxygen-poor blood to the heart.
3. Left atrium - receive oxygen - rich blood from the lungs.
4. Left ventricle - pumps oxygen rich blood to the body.
The heart is a muscular organ. It is about the size of a closed fist. It is located in the thoracic cavity. It is protected by the rib cage and is the major organ of the circulatory system.
ATP is the energy coin of the cell. The hydrolysis of ATP releases energy which is used to carry out cellular functions.
- The cells use the cycle to recycle ADP and phosphate.
- The cross-bridge cycle of ATP involves its dephosphorylation, thereby producing Adenosine diphosphate (ADP) and inorganic phosphate (Pi).
- The ATP cycle involves an exothermic reaction (hydrolysis) that releases energy, which is used for the cells to carry out their metabolic functions (e.g., growth, differentiation, etc).
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Answer:
Mitosis
Explanation:
It takes place in two stages, e. g. Karyokinesis and Cytokinesis.
Answer:
woodlands
Explanation:
i did a quiz on this and i got a 100
