elwinelwin9475

27.01.2021 • 

Biology

Predators Contribute to a Stable Ecosystem In nature, energy flows in only one direction. Transfer of energy must occur in an ecosystem
because all life needs energy to live, and only certain organisms can change solar energy into
chemical energy. Producers are caten by consumers that are, in turn, caten by other consumers,
Stable ecosystems must contain predators to help control the populations of consumers. Since
ecosystems contain many predators, exterminating predators would require a massive effort that
would wipe out predatory species from barnacles to blue whales. Without the population control
provided by predators, some organisms would soon overpopulate,
Explain the phrase "only certain organisms can change solar energy into chemical energy," in the
underlined portion of the first paragraph. In your answer be sure to identify:
1)the type of nutrition carried out by these organisms
2)the process being carried out in this type of nutrition
3)the organelles present in the cells of these organisms that are directly involved in changing solar
energy into chemical energy

Ответ:

quadyshia12370

03.02.2020

Biology

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The word ‘comet’ comes from the Greek komhth comètè (long-haired), from which we also get the word ‘comb’. Loosely, a comet appears as a hairy star. For millennia comets have been associated with disasters. Two examples are the apparitions of Halley’s Comet during the Battle of Hastings in 1066 and the destruction of Jerusalem in AD 70. Comets really do appear mysterious. While the stars, the Sun, the Moon, and the five naked eye planets all follow regular and predictable motions, comets appear suddenly, quickly move in an erratic fashion, and then abruptly disappear, apparently never to be seen again.

Comets contain dust, ice, carbon dioxide, ammonia, methane and more. Astronomers think comets are leftovers from the material that initially formed the solar system about 4.6 billion years ago.

Explanation:

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