What key factor limits the number of trophic levels in an ecosystem?
a. maximum solar radiation
b. energy loss
c. herbivore size
d. predator size
e. climate
B
Biology & Microbiology
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Chloroplasts are a feature of ________________
a. animal cells. b. plant cells. c. bacteria. d. all cells.
Biology & Microbiology
Which of the following is NOT caused by a bacterium?
A) epidemic typhus B) tickborne typhus C) malaria D) plague E) relapsing fever
Biology & Microbiology
What is meant by the statement, ‘natural selection lacks foresight'?
What will be an ideal response?
Biology & Microbiology
What number is/are enveloped helical virus(es)?
What will be an ideal response?
Biology & Microbiology