Exam 52: The Reproductive System

You are doing veterinary research on dog hormones.In your set of blood samples, you have one male dog with abnormally high levels of follicle-stimulating hormone and luteinizing hormone.What do you suspect may be the explanation for this outlier?

What is the term for organisms in which internally-fertilized eggs are laid to develop and hatch outside the mother's body?

Which is a correct description of hormone action?

Which is a correct statement about reptile reproduction compared to bird reproduction?

In humans, which embryonic tissues are "indifferent"?

According to the figure, what is occurring during day 2?

What is often -- but not always -- a feature that accompanies the evolution of internal fertilization?

Major extinctions of dinosaurs are associated with large meteor impacts, including the final extinction that wiped them out at the Cretaceous-Tertiary boundary.The particulate matter that would have arisen as a result of impact would have entered the atmosphere and had secondary impacts.Some scientists believe that a fundamental difference between mammals and dinosaurs allowed mammals to survive this event, but doomed the dinosaurs.What may have characterized the last generation of dinosaurs as they went extinct?

Select the correct statement regarding the human female reproductive system.

Terrestrial vertebrates and some fish evolved a form of fertilization in which the male gametes are introduced into the female reproductive tract.What is this called?

What stimulates ovulation?

Ovoviviparity is found in

There are numerous fish genera that have individuals that can change their sex during their lifetime.What is this called?

Vertebrates that practice internal fertilization employ three strategies for embryonic and fetal development.In one strategy, the female retains the eggs within her body and the young are fully developed when they hatch inside of her.What is this called?

If a mutant organism used mitosis to produce gametes, what would be the result of mating with a wildtype partner?

Ovulation occurs by a surge in the secretion of what hormone?

Why did internal fertilization likely evolve?

A marine aquarium has been hoping to breed some endangered species in its intertidal zone tank, but has been unsuccessful.Their new student intern, who is taking Introductory Biology at the local university, suggested raising the water level.It worked! Several species spawned and the aquarists are thrilled.What is the best explanation for the behavioral response?

Select the correct sequence of events of the human menstrual phase, beginning and ending with the menstrual cycle.

Select the correct pair of statements about FSH and LH function.