Answer:
In metaphase ll, the chromosomes line up in the middle of the cell
Explanation:
The mitotic division of microspores belongs to the gametophyte stage of the life cycle of the pollen.
<h3>What are pollen grains?</h3>
Pollen are very important in the propagation of a flower. They need to be involved in the process of fertilization. As a matter of fact pollination is the transfer of pollen grains from the anther to the stigma of a flower.
Now we can see that there are various stages in the development of pollen. The mitotic division of microspores belongs to the gametophyte stage of the life cycle of the pollen.
Learn more about pollen:brainly.com/question/21021623
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Answer:
they have lower levels of the neurotransmitter serotonin
Garbage dumping increases ocean acidification
Answer:
The calcium concentration must be greater OUTSIDE
the cell than INSIDE the cell.
Explanation:
Calcium has a vital role in the body, it is necessary for:
- exocytosis
- muscle contraction
- normal excitability of neurons
- blood coagulation
- building and maintaining bones and teeth
- enzymatic activity
