Red algae can survive in deeper water because
of
a. phycobilins.
b. holdfasts.
c. chlorophyll a.
d. a stonelike cell wall.
e. their preference for freshwater habitat.
A
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Answer the following statements true (T) or false (F)
1.Teeth are mineralized structures for holding and breaking up food. 2.When cleaning up from lab, you are asked to place two intestinal tracts in the appropriate bins. You would put the shorter one in a bin marked "herbivore" and the longer one in a bin marked "carnivore." 3.An autotroph obtains the energy it needs to maintain homeostasis from the sun. 4.A heterotroph obtains the energy it needs to maintain homeostasis from the sun. 5.Endotherms need more energy than ectotherms since they must do more metabolic work to maintain body temperature.
Groups of genes that are evolutionarily related are called _____
A) gene families B) gene duplications C) SNPs D) gene domains E) metagenomes
Factors that contribute to difficulty in eliminating fungal infections via the body's defenses include
A) the capsules of some fungi resist phagocytosis. B) many fungi are resistant to cell mediated immune responses. C) many pathogenic fungi produce leukocidins. D) both resistance to phagocytosis and cell mediated immunity. E) many pathogenic fungi are resistant to the action of complement.
After succession, a stable group of species that persists over long periods is referred to as a:
A) competitive population. B) population. C) coevolution group. D) climax community.