Im not 100 percent sure, but I believe that the answer is D) because A), B), and C) are all equally necessary. Yet D) seems to have a much higher level of importance
<span>Human chorionic gonadotropin hormone (hCG)
This hormone is produced by a woman only during pregnancy and is responsible for "pregnancy symptoms," such as vomiting and nausea.
It is primarily produced by the placenta shortly after the dividing fertilized egg cell (embryo) attaches or implants itself into the uterine lining (endometrium). This occurs a few days after the woman has conceived.
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The answer is secretory vessicles. They transport the modified proteins and lipids from the Golgi apparatus to the outside of the cells. They are especially abundant in secretory cells. They bud from the trans side of the Golgi apparatus. Golgi apparatus are flattened disks of the membrane with cisternae. They transport, fold and modify proteins and lipids in a cell. The cis side of Golgi apparatus is located in close proximity to the endoplasmic reticulum that manufactures the proteins and lipids.
Hundreds of spores are released into the air
Answer:
helps us to learn about different kinds of plants and animals, their features, similarities and differences.It enables us to understand how complex organisms evolve from simpler organisms
Explanation
step by step