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FinnZ [79.3K]
4 years ago
9

Albert, a student researcher, varies the amount of food given to rats in an experiment to measure the effect on their learning b

ehavior. in albert's study, the amount of food given is the _____ variable.
Biology
1 answer:
Fynjy0 [20]4 years ago
6 0

Albert, a student researcher, varies the amount of food given to rats in an experiment to measure the effect on their learning behavior. In albert's study, the amount of food given is the independent variable.

An independent variable is under the control of the experimenter. Independent variable does not depend on the other variables involved in the experiment. Since the amount of food is varied, it is not depending on other variables like size of mice, weight, etc.

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How are animals, plants, and humans similarly affected when a tropical rain forest is cleared???
faltersainse [42]

<u>Complete Question:</u>

Read the passage below and answer the questions that follow.

Tropical rain forests once covered about 20 percent of Earth’s  surface. Today, they cover only about 7 percent. Every minute of  every day, 100 acres of tropical rain forest are cleared for logging  operations, agriculture, or oil exploration. Habitat destruction  occurs when land inhabited by an organism is destroyed or altered.  If the habitat that an organism depends on is destroyed, the  organism is at risk of disappearing.  Animals and plants are not the only organisms that live in rain  forests. An estimated 50 million native peoples live in tropical rain  forests. These native peoples are also threatened by habitat  destruction. Because they obtain nearly everything they need from  the forest, the loss of their habitat could be devastating. This loss  of habitat may force them to leave their homes and move into  cities. This drastic change of lifestyle may also cause the native  peoples to lose their culture and traditions along the way.

How are animals, plants, and humans similarly affected when a tropical rain forest is cleared?

<u>Explanation:</u>

The continents like Africa, South America and also Southeast Asia range among the greatest tropical rainforests in the planet, these are humid biome i.e both warm and moist, which are located close to the equator of the earth. There is 60 to 160 inches range of precipitate production, which is spread relatively uniformly all year round.

For an instance, recently the wildfire devastated the amazon rainforest during August 2019, due to which animals, plants and humans similarly got affected, which is given as follows:

  • It leads to the carbon dioxide sink and plays a remarkable role in mitigating global warming.
  • Many species of animals lost their habitat, many died which were rare to find.
  • Huge loss of plant species on which animals use to rely for their food supplies, also the dense canopy which were providing beauty to ecosystem have been lost.
  • Aquatic species might also be harmed by the fires which turn the water chemistry into a state that is unfit for life.
  • Many tribes use to reside in nearby location, dependent on animals and plants for their essentials.
  • Many industries of timber, perfume, and others got effected, as resources itself get destroyed form fire.
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Answer:

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