Answer:
a. heart development.
Explanation:
As the third week of fetal development starts, the process of formation of blood vessels begins. Also, the splanchnic mesoderm in the head end of the embryo forms heart on days 18 and 19. Since it develops heart, this part of the mesodermal cells is called the cardiogenic area. The underlying endoderm sends the induction signals to these mesodermal cells to form a pair of endocardial tubes that gradually develop into a single primitive heart tube.
This primitive heart begins to beat by the end of the third week of development. Therefore, any drug that affects fetal development during the first 20 days of the pregnancy might affect the development of the heart.
Answer:
Homo sapiens
Explanation:
I am so sorry if I get it wrong
<span>This is due to the higher forces needed to pump blood through the systemic circuit (around the body) compared to the pulmonary circuit.</span>
I believe the answer is quite simple.
She must've compared the clothing washed with the new detergent with the old one. Jenny must've looked for stains, odour, etc. These would help determine whether or not the new detergent worked better.
Electron transport chain and the Calvin cycle are two essential metabolic reactions that play a significant role in our bodily processes. Electron transport chain produces ATP and NADPH. Calvin cycle, on the other hand, uses the ATP as energy to produce sugar and carbohydrates. Thus,
electron transport chain: ATP/NADPH::Calvin cycle:sugars/carbohydrates
