For normal human fertilization to occur, _____
A) many ova must be released
B) the uterus must be enlarged
C) only one sperm needs to penetrate one egg
D) secretion of pituitary follicle-stimulating hormone (FSH) and luteinizing hormone (LH) must decrease
E) the secondary oocyte must implant in the uterus
Answer: C
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Changes in the phenotypes within a population ultimately result from changes in what?
a. changes in the rate of mutation b. changes in the rate of gene flow c. changes in the rate of genetic drift d. changes in the gene pool
Which of the following is NOT true about
asexual reproduction?
a. offspring of asexual reproduction are genetically the same as their parent b. no mammals are known to reproduce asexually c. many invertebrates reproduce asexually d. asexual reproduction is advantageous in changing environments e. all of these are true about asexual reproduction
An entire cell cycle can be completed in about ________
A) 1 to 2 hours B) 24 hours C) 48 hours D) 1 week
The M protein enhances the virulence of Streptococcus by preventing phagocytosis
Indicate whether the statement is true or false