C does not correctly match
All of these things would be considered homologous. Please mark Brainliest!!!
The correct answer is (b) <span>They can be directly observed.</span>
Answer: B
Explanation: Most mammals have only one pair of sex chromosomes in each cell. Males have only one Y chromosome and one X chromosome, while females have two X chromosomes. In Mammals, the Y chromosome contains a gene, SRY, which triggers embryonic development in a male.
Hope this helps!
Answer:
Controls blood flow to regulate body temp.
Explanation:
Circulatory system deals with flow/transport of blood