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Varvara68 [4.7K]
3 years ago
11

Describe the major developments during each trimester of human gestation.

Biology
1 answer:
Anika [276]3 years ago
5 0
The first trimester

Most women ovulate once a month, about two weeks after their last menstrual cycle. Ovulation is the release of an egg. If you have sexual relations before, during, or within 24 hours of ovulation, sperm can travel from the vagina into your fallopian tubes and fertilize the egg. Sperm can live in the body for up to five days, so your chances of conceiving are higher if you have intercourse in the days leading up to ovulation.
These developments continue up to week 10, which is the end of the embryonic stage. Your baby’s sex organs will have formed by the end of this stage, although it's too early to determine the baby’s sex on an ultrasound.
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Soloha48 [4]

The correct answer is D. Caulerpa

Explanation:

Protists are a type of unicellular organisms that are eukaryotic which means they contain a defined nucleus but that are not plants, animals or fungus. Considering protists only contain one cell in most of the cases they are small or restricted in size this includes Dictyostelium which are microscopic organisms that consume bacteria and plasmodium. However, in the case of Caulerpa, these are not limited to size as Caulerpa is a type of alga that has macroscopic cells and indeed in some cases can be around 3 meters long. On the other hand, Ulva is also an alga but is considered in the plants' domain and therefore is not a protist. Therefore the one that contradicts contradict the statement that unicellularity restricts cell size in protists is the Caulerpa.

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