Answer:
1.
Explanation:
Controlling the level of sugar in the blood is an example of a feedback mechanism
Answer:
B
Explanation:
Cytoplasm is like air in the city analogy
1 is b or 1/4 (I'd recommend checking a punnet square too)
Answer:
Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.
Explanation: