How can prokaryotes be considered to be more successful on earth than humans?
a. prokaryotes are much more numerous and have more biomass
b. prokaryotes occupy more diverse habitats
c. prokaryotes are more diverse in metabolism
d. only b and c are correct
e. a, b and c are correct
Ans: e. a, b and c are correct
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Which of the following is a component of the spore—or zygote—wall (in mosses, ferns, gymnosperms, and angiosperms) and helps prevent the desiccation of these structures?
A. sporangium B. sporopollenin C. chitin D. peptidoglycan E. sporangia
A lake is usually _____ and _____ than a pond.
A. larger; deeper B. smaller; shallower C. smaller; deeper D. saltier; warmer E. larger; shallower
The element needed for blood clotting, nerve
transmission, and bone formation is a. iron. b. iodine. c. calcium. d. zinc. e. magnesium.
Lazzaro Spallanzani was the first scientist to provide evidence disproving the spontaneous generation of microorganisms
Indicate whether the statement is true or false