ECOLOGY
ORGANISMS AND THE ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bacteria living in the mouth of a human.
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Ivy plants growing up a fence to obtain more sunlight.
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Mold living on a rock.
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A catfish releasing carbon dioxide into lake water.
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Detailed explanation-1: -Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive. This is known as interdependence, as depicted in the Figure below. For example, living things that cannot make their own food must eat other organisms for food.
Detailed explanation-2: -An organism that cannot manufacture its own food and instead obtains its food and energy by taking in organic substances, usually plant or animal matter is a heterotroph. All animals, protozoans, fungi, and most bacteria are heterotrophs.
Detailed explanation-3: -Heterotrophs are the organisms which depend on other organisms for food. Mode of nutrition in these organisms is heterotrophic nutrition.
Detailed explanation-4: -A habitat is a place where an organism makes its home.