Why do tropical rain forests receive so much rain?
What will be an ideal response?
At the equator, intense sunlight heats air and causes evaporation from the ocean. The result is an upward movement of warm, moist air. As this air rises to higher altitudes, it cools and flows north and south, releasing moisture as rain. This rain supports tropical rain forests.
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How are the zygote and the dikaryotic stages of a fungal life cycle related?
A. The dikaryotic stage gives rise to the zygote through karyogamy. B. The dikaryotic stage and zygote stage are both diploid. C. The zygote stage gives rise to the dikaryotic stage through plasmogamy. D. The dikaryotic stage and zygote stage occur only in asexual life cycles. E. The zygote stage gives rise to the dikaryotic stage through meiosis.
Sexual reproduction between male and female ascomycetes requires each strain to develop special hyphae that combine during fertilization. What are the hyphae developed by the female strain called?
a. mycelia b. antheridia c. ascogonia d. gametangia
Which sense is a general sense?
A) pressure B) smell C) hearing D) vision
In house sparrows (Passer domesticus) it is generally found that both males and females care for the eggs and young
However, some male house sparrows do not provide parental care. In addition, it is known that young that receive parental care from both the male and female are more likely to survive to fledging (leaving the nest). Which of the following activities by males that do not provide parental care would represent the most beneficial trade-off for the reduced survival of their offspring? A) attacking the nests of neighboring males B) mating with additional females and fathering more eggs C) eating to build up energy stores for migration D) grooming to eliminate parasites from their feathers