Discuss adaptations for terrestrial life seen in land plants. What will be an ideal response?
Concepts to Consider: Stomata to allow carbon dioxide to enter the leaf; a waxy cuticle to reduce
water loss; gametangia with sterile cells to protect the reproductive cells; lessened reliance on water
for reproduction.
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In MacArthur and Wilson's island biogeography model, species richness is a balance between
A. arrival and extinction. B. inhibition and facilitation. C. arrival and speciation. D. tolerance and inhibition. E. None of these choices are correct.
Under the ___________ , species are identified based on their unique habitat requirements.
A. phylogenetic species concept B. biological species concept C. evolutionary species concept D. ecological species concept E. general lineage concept
The growth response in plants that is related to touch is called
A. gravitropism. B. gravitouchism. C. thigmotropism. D. turning in response to gravity. E. turning away from light.
The average person in the United States has an ecological footprint nearly _____ times that of an average world
citizen. a. two b. three c. four d. five e. six