In the above diagram, the ____ is (are) labeled
with the letter "J".
a. bronchi
b. bronchioles
c. diaphragm
d. alveoli
e. trachea
D
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A subordinate animal in a dominance hierarchy has limited access to food and mates. The most likely reason he
remains in a social group that dominates him is because ____.
a. he is exhibiting altruistic behavior b. his chances of survival and reproduction are better in the group than alone c. he expects to become dominant in the future d. he does not know that it would be an advantage for him to leave e. dominant group members will not allow him to leave
What structures will attach your chromosomes to the spindle fibers?
a. Cleavage furrows b. Contractile ring c. Centrioles d. Actin filaments e. Microtubules
Cryptic species:
a) must obtain their nutrients from parasitizing other species. b) eat plant material. c) blend into their surroundings. d) play dead when threatened. e) have a distinctive appearance, odor, or behavior that indicates that they are unpalatable.
Which of the following occurs in the placenta?
A) Eroding blood vessels in the endometrium bathe chorionic villi in pools of maternal blood. B) Hormones are absorbed to prevent them from influencing the developing fetus. C) Fetal blood and maternal blood mix. D) All substances in maternal blood that may be harmful to the fetus are prevented from moving across the walls of the villi. E) The amnion and the chorion grow into the endometrium.