Animal Reproduction Practice Problems
______ is a derivative of the synthetic progestin norethindrone with antiprogesterone activity.
The birth control pill functions primarily by:
Which of the following hormones is given as an oral administration to prevent pregnancy?
Which of the following is not a function of progesterone?
How can taking progesterone pills prevent conception in women?
Identify the "barrier" contraception method among the following:
Human eggs are 0.1 mm in diameter, while frog and fish eggs range from 1 mm to 2 mm. What could have caused this variation in egg size among these organisms?
The insecticide endosulfan can suppress pheromone production. Pheromones are used to indicate reproductive receptivity for many organisms, such as red-spotted newts. Suppose a lake near an agricultural area becomes contaminated with endosulfan; what will be the possible effect of this on the population of red-spotted newts living on the lake?
During sperm competition, two or more spermatozoa from different males compete to fertilize the same egg. It can occur when the female has multiple potential mating partners. Which of the following states the downside of this process for each individual male?
Which of the following types of asexual reproduction is commonly observed among prokaryotes and a few eukaryotes in which the organism is divided into two or more parts, producing separate entities that resemble the original?
Spermatogenesis and oogenesis are two types of gametogenesis in which a _______ gamete cell produces _____ sperm and egg cells.
During the ovulation period, estrogen signals the hypothalamus and pituitary gland causing a rapid rise in estrogen production by the ovaries. This mechanism is an example of:
During gastrulation, the blastula reorganizes into two primary germ layers. The inner layer is called _________, and the outer layer is called _________.
The corpus luteum is a mass of cells that forms in the ovary and produces the hormone ___________ during the early stages of pregnancy.
What happens during cleavage in animal development?
Spermatogenesis is the ____while ovulation is_____:
Identify the correct sequence of movements of sperms inside a female body.
What is the fate of human egg cells after ovulation if fertilization is successful?
Sperms are produced inside ____and released from the body through___:
Which one of the following is involved in the production of sperm?
Which one of the following is not part of the female internal reproductive organs:
Secondary oocytes complete meiosis II if fertilised by sperm. Identify at which phase of meiosis II secondary oocytes is arrested.
Which of the following examples demonstrates a parthenogenesis reproduction?
During the first semester, when the embryo develops adult structures in rudimentary forms, it is called ______.
In order to create gametes, a __________ must go through the same number of _________ in both human men and females.
Which of the following statements about the menstrual cycle is false?
LH and FSH work together to stimulate follicular growth and _____.
Which of the following is paired correctly?
All male mammals with reproductive and excretory systems have a _______ tube, which connects the testicles to the vas deferens.
Which of the following statements about human reproduction is true?