C. is the answer.
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Answer:
This time is divided into three stages, called trimesters.
Explanation:
First trimester, spans from conception to 12 weeks
Second trimester, spans from weeks 13 and 28.
Third trimester, spans from weeks 29 to 40.
https://my.clevelandclinic.org/health/articles/7247-fetal-development-stages-of-growth
Answer: SPORES are defined as haploid (1n) cells which develops into gametophytes.
Gametophytes inturn produce either haploid (1n) male or females GAMETES that can fuse to form diploid ZYGOTES.
This basically explains what goes on in Meiosis.
Yes, energy is
required to separate the charges. Mostly, the inner of the cell membrane
is negatively charged compared to the outside. When the cell becomes depolarized,
ions, especially, Sodium ions, are pumped
out by active transportation to restore resting potential. Active transport requires energy from ATP powered by food metabolism.
