True or false: The corpus luteum is retained upon implantation due to the presence of the hormone human chorionic gonadotropin (hCG).

Which of the following statements regarding animal development is/are correct? Select True or False for each statement.T/FThe neural tube forms after organogenesis is completeT/FThe blastocyst is formed during cleavageT/FDuring cleavage, the zygote divides rapidly without growth, forming a mass of cellsT/FAnimals have two germ layers

Which of the following is properly paired?(A)seminiferous tubule—cervix(B)vas deferens—oviduct(C)corpus luteum—Sertoli cell(D)scrotum—clitoris

A sperm cell follows which path?a. seminiferous tubules, epididymis, vas deferens, urethra;b. urethra, vas deferens, seminiferous tubules, epididymis;c. seminiferous tubules, vas deferens, epididymis, urethra;d. epididymis, seminiferous tubules, vas deferens, urethra;e. epididymis, vas deferens, seminiferous tubules, urethra

Peaks of LH and FSH production occur duringa. the menstrual flow phase of the uterine cycle.b. the beginning of the follicular phase of the ovarian cycle.c. the period just before ovulation.d. the secretory phase of the uterine cycle.

An egg cell that is not fertilized follows which path?a. ovary, oviduct, uterus, cervix;b. ovary, uterus, oviduct, cervix;c. oviduct, ovary, cervix, uterus;d. oviduct, ovary, uterus, cervix;e. ovary, oviduct, cervix, uterus

During human gestation, rudiments of all organs developa. in the first trimester.b. in the second trimester.c. in the third trimester.d. during the blastocyst stage.

Summarize the experimental evidence that Daphnia require three cues to trigger sexual reproduction. Discuss what these cues indicate about the environment.

Which of the following is mismatched?a. urethra: sperm passage;b. testes: hormone production;c. vas deferens: semen production;d. seminiferous tubules: sperm production