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yaroslaw [1]
3 years ago
8

A.

Biology
1 answer:
snow_lady [41]3 years ago
6 0

Answer:

A) Light pollution both attracts and repels migratory birds

In addition to the many hazards that exist in urban areas, cities typically lack the food resources and cover that birds need during migration or when raising their young. ... Darkening skies at night during migration season makes it easier for birds to navigate.

Explanation:

Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by availability of food. It occurs mainly in the northern hemisphere, where birds are funneled on to specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea.

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<span>occurring about every 5 minutes

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lina2011 [118]

Explanation:

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​rich sources of polyunsaturated fatty acids are found in ____. ​lamb ​sunflower oil ​milk ​egg yolk ​fish eggs
mihalych1998 [28]
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3 years ago
What is the essence of the catalase test?
garik1379 [7]

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Catalase test demonstrate the presence of an enzyme called catalase, that catalyses the release of oxygen from hydrogen peroxide. It is used to tell the difference between the non-catalase producing bacteria from those bacteria that produces an enzyme catalase. Catalase is produced by the bacteria that respire using oxygen. If an organism produces catalase, bubbles of oxygen are produced when hydrogen peroxide is added to it.

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Which of the following best represents a simple food chain?
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