The cells of plasmodial slime molds can grow to several centimeters in diameter because
A) they have organelles.
B) they distribute nutrients by cytoplasmic streaming.
C) the large surface can absorb nutrients.
D) they form spores.
E) they have a mouth to ingest nutrients.
B
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Suppose you use a match to ignite a sheet of paper from your notebook, and allow the fire to continue until the burning stops
If you could measure all the energy in the resulting ombustion products, and all the energy in the heat released (including whatever increase in disorder has occurred), would you predict this amount to be more than, less than, or the same amount as the amount of potential energy in the starting sheet of paper? (You should ignore the activation energy provided by the match to light the paper.) A. more energy than the paper B. less energy than the paper C. the same energy as the paper
In humans, mitochondria (and their genomes) show:
A. strict maternal inheritance. B. strict paternal inheritance. C. biparental inheritance. D. primarily maternal inheritance with occasional paternal inheritance. E. primarily paternal inheritance with occasional maternal inheritance.
Mature plants may become __________ in dry or cold seasons in order to survive long periods that are unfavorable for growth.
A. dormant B. dehydrated C. photoperiodic D. thigmonastic E. gravitropic
The role of a control in an experiment is to
A) provide a basis of comparison to the experimental group. B) prove that a hypothesis is correct. C) ensure repeatability.