Refer to the accompanying figure. An important adaptation for all primates resulting from the structure labeled as A is:
a. knuckle walking.
b. bipedal locomotion.
c. clinging to branches of trees.
d. increased diversity in the diet.
e. improved social interactions.
c
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Aflatoxins
A. are produced by Aspergillus. B. are possible carcinogens. C. may be found in peanuts. D. are toxins. E. All of the choices are correct.
If a trait is heritable, then individuals with a genetic relatedness of 0.5 are expected to
A) exhibit more phenotypic similarity than two random individuals in the population. B) be as similar in phenotype as a pair of random individuals in the population. C) have identical phenotypes because they are twins. D) have an average phenotypic value that is close to the mean of the population.
Which structure is responsible for keeping the fetus from slipping out of the uterus prematurely?
a. cervix b. vagina c. endometrium d. placenta e. umbilical cord
HIV’s primary genetic instructions are in the form of ____
a. DNA b. RNA c. proteins d. amino acids e. DNA and RNA