Many fern gametophytes are hermaphrodites, meaning they can produce both sperm and egg. Why is this necessary for a fern, but not for an angiosperm?
A. If one seed colonizes a new habitat, reproduction can occur in later stages.
B. The gametophyte can produce multiple types of spores.
C. The gametophyte can produce multiple types of seeds.
D. If one spore colonizes a new habitat, reproduction can occur in later stages.
E. Angiosperm gametes are diploid.
Answer: D. If one spore colonizes a new habitat, reproduction can occur in later stages.
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A conservation group is deciding what land to preserve. Why might they want to consider an area of land where the ecosystem is partially damaged by a logging contract that cannot be overturned?
A. Conservation groups often focus of fixing damaged land and ecosystems. B. When conservation groups choose land to preserve, they just consider what is best for the one target species that is endangered. C. By making logging difficult, they strengthen environmentalism. D. Human activity often leads to the evolution of unique species that take advantage of the disrupted environment. Additional: Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about conservation? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The chains of an antibody molecule are bonded to one another by
A. disulfide bonds. B. hydrogen bonds. C. ionic bonds. D. oxygen bonds.
What are the three major factors that impact the type of biome that will exist in a given area? What will be an ideal response?
Why do free-living bacteria, such as Escherichia coli with 4000 genes, have more genes than intracellular bacteria?
What will be an ideal response?