Answer: nucleus, mitochondrion
Explanation: just did it
These changes are brought about by the secretion of estrogen and androgens by the ovaries.
The ovaries start producing these hormones which are responsible for these changes that Molly is experiencing. Her puberty is just starting, which means that her body is getting "modified" so as to accommodate her new alterations.
Answer:
Partially / semi <u>permeable</u>
Explanation:
Only certain substances can move in cells thus membranes are permeable partially.
Answer:
(D) They are all acids
Explanation:
Amino acids are monomers, fatty acids are polymers and they do not contain nitrogen. All four are acidic in nature for different reasons:
- Amino acids due to acidic carboxyl group -COOH.
- Fatty acids due to end chain acidic carboxyl group -COOH.
- Nucleotides because they have phosphate groups (which are acidic in nature).
- Monosaccharides due to presence of aldehyde group -CHO (which can oxidise to -COOH).
Answer:
50% Hh - short, 50% hh - long
Explanation:
The top of the Punnett square would have Hh and the side would have hh. When crossed, the results would be Hh, hh, Hh, and hh. So half of the offspring have short hair and the other half have long hair.