The action spectrum of photosynthesis best matches the absorption spectrum of:
a. ATP.
b. NADPH.
c. carotenoids.
d. carbohydrates.
e. chlorophylls a and b
e
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From a genetic viewpoint, of what significance is fertilization?
What will be an ideal response?
A new species of mammal is discovered deep in the Antarctic. This mammal contains an organ that does not seem to
be homologous to any other known organ. Upon examination, it appears that this organ is responsible for secreting hormones necessary for regulating subcutaneous fat levels to regulate body temperature. To which system does this new organ most likely belong?
a. digestive system b. integumentary system c. immune system d. endocrine system e. nervous system
The sac fungi are characterized by sexual reproductive structures called:a
asci. b. basidia. c. conidia. d. gemmae. e. conidiophores
Which of these events is an example of indirect contact transmission?
A) A person develops plague from a flea bite. B) Vacationers develop shigellosis, caused by the intestinal pathogen Shigella spp., after drinking contaminated water. C) Tuberculosis is spread from one person to another after traveling through the air for several meters. D) A person drinks from a cup used by another individual. E) Several people become infected with Listeria after consuming contaminated ice cream.