Population growth
a. is limited by only one factor at a time.
b. increases arithmetically.
c. increases indefinitely.
d. is limited by the carrying capacity.
e. is represented by a minimum of two
different sizes
D
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Finally, you take a tree and block the ants from the canopy. Then you spend three years counting the number and types of insects on the forest floor around this tree (tree A) and in the area around a tree in which ants are not blocked (tree B)
You find that the area around tree A has 25% fewer ants and 40% more beetles than the area around tree B. These data support the hypothesis that: A. there is no relationship between ant abundance and beetle abundance. B. there is a positive relationship between ant abundance and beetle abundance. C. there is a negative relationship between ant abundance and beetle abundance. D. ecological interactions in the tree canopy have no effect on forest floor communities. E. ecological interactions in the tree canopy always have a negative effect on forest floor communities.
If you wanted to separate cells of a plant tissue sample into individual cells you would need to disrupt _____.
A. middle lamella B. hemidesmosomes C. primary cell walls D. adherens junctions E. plasmodesmata
ATP is required by cells for
A. DNA replication. B. movement. C. production of proteins. D. growth. E. All of the answer choices are correct.
Short-day plants
a. flower in early spring. b. will not bloom until they have been exposed to a dark period longer than a critical length. c. flower in the fall. d. will not bloom if their dark period is interrupted by a short pulse of intense red light. e. do all of these.