The temperature stability of earth’s atmosphere is mostly due to _______.
Explain why echolocation is a superior adaptation for insectivorous bats rather than fruit bats.
Echolocation is especially useful for insectivorous bats because it helps them find and track small, moving insects in darkness. Fruit bats can often locate stationary fruit using smell and sight, so they do not depend on echolocation as much.
Polar bears’ hair _______.
Compare the importance of both biotic and abiotic factors to an ecosystem.
Abiotic factors, such as water, temperature, soil, and light, provide the conditions and resources that organisms need. Biotic factors, such as plants, animals, and microbes, form populations and interact through feeding, competition, and decomposition. Both are essential, and changes in either can affect the whole ecosystem.
Which hummingbird adaptation is most advantageous for supporting their high metabolism?
How has the Gila Monster adapted to the breeding patterns of its prey the Gambel quail and desert cottontail rabbits?
Gila monsters become active in spring when Gambel quail and desert cottontail rabbits are breeding. This allows them to feed on quail eggs and on young rabbits when these prey are more available.
Explain how water can be an abiotic environmental factor when it is essential to all life on earth.
Water is abiotic because it is a nonliving part of the environment. Its importance to organisms does not make it living; rather, it is a resource and environmental condition that all life depends on.
Explain the relationship between light intensity and the daily rhythm of flowers opening.
Many flowers open when light intensity rises to a suitable level during the day and close as light intensity falls at dusk. Thus, changes in light intensity help regulate their daily opening and closing rhythm.
Which of the following are not biotic factors in a terrestrial ecosystem?
Which of the following is a specialist species?
Which of the following is a specialist species?
The temperature stability of earth’s atmosphere is mostly due to _______.
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