Questions from Conceptual Biology

Q: Chemoreceptors play a role in the sense of ________. a.

Chemoreceptors play a role in the sense of ________. a. taste b. smell c. touch d. hearing e. both a and b f. all of the above

Q: In the ________, neurons are arranged like maps that correspond to different

In the ________, neurons are arranged like maps that correspond to different parts of the body surface. a. retina b. somatosensory cortex c. basilar membrane d. occipital lobe

Q: Drugs that interfere with sympathetic nerve signals are often prescribed for men

Drugs that interfere with sympathetic nerve signals are often prescribed for men who have high blood pressure. How might such drugs impair sexual performance?

Q: Cells lining the epididymis secrete a glycoprotein (beta-defensin)

Cells lining the epididymis secrete a glycoprotein (beta-defensin) that coats sperm and facilitates their passage through cervical mucus. There are two common alleles for human beta-defensin: a wild-t...

Q: Sexual reproduction ______. a. requires formation of gametes by meiosis

Sexual reproduction ______. a. requires formation of gametes by meiosis b. produces offspring identical in their traits c. occurs only in vertebrates d. all of the above

Q: Global climate change is causing ________. a. a decrease in

Global climate change is causing ________. a. a decrease in sea level b. glacial melting c. acid rain d. all of the above

Q: Fraternal twins are nonidentical siblings that form when two eggs mature and

Fraternal twins are nonidentical siblings that form when two eggs mature and are released and fertilized at the same time. Explain why an increased level of FSH raises the likelihood of fraternal twin...

Q: Cells lining the epididymis secrete a glycoprotein (beta-defensin)

Cells lining the epididymis secrete a glycoprotein (beta-defensin) that coats sperm and facilitates their passage through cervical mucus. There are two common alleles for human beta-defensin: a wild-t...

Q: The ______ is a genetic dead end. a. polar

The ______ is a genetic dead end. a. polar body b. oocyte c. ovum d. sperm

Q: Some sperm mitochondria enter an egg during fertilization, but as sperm

Some sperm mitochondria enter an egg during fertilization, but as sperm mature these mitochondria are tagged with a protein (ubiquitin) that marks them for destruction. What organelle carries out this...