Whose work on spontaneous generation first demonstrated the existence of a very heat-resistant form of bacteria that are called endospores?
A. Redi
B. Tyndall
C. Pasteur
D. Schwann
Answer: B
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A normal sperm count is ________ sperm per ejaculate.
A) 100,000 to 500,000 B) 1 to 2 million C) 15 to 200 million D) 1 to 3 billion
Fleshy fruits with hard seed coats, such as cherries, are more likely to be dispersed by ____ than by other means
a. wind b. adhering to animal fur c. passing through animal guts d. falling to the ground, rotting, and releasing their seeds e. water currents
At high population density, __________ is favored, with organisms investing more time and energy in fewer, higher
quality offspring. Fill in the blank(s) with the appropriate word(s).
Which of the following is a double-stranded RNA virus?
A. Picornaviridae B. Coronaviridae C. Retroviridae D. Reoviridae E. Rhabdoviridae