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The major function of the respiratory system is to:(1 point)

Responses

cleanse the body of toxins, poisons, and harmful chemicals.
cleanse the body of toxins, poisons, and harmful chemicals.

maintain the digestive system of the body so that it can continue to operate.
maintain the digestive system of the body so that it can continue to operate.

give the heart the energy it needs to circulate blood.
give the heart the energy it needs to circulate blood.

provide oxygen to the body and eliminate carbon dioxide from the body.
provide oxygen to the body and eliminate carbon dioxide from the body.

provide oxygen to the body and eliminate carbon dioxide from the body.

A scientist discovers a new organism. The organism is multicellular, eats other organisms for food, and moves freely from place to place. This organism most likely belongs to(1 point)Responsesthe animal kingdom.the animal kingdom.the protist kingdom.the protist kingdom.the plant kingdom.the plant kingdom.all of these

the animal kingdom.

Scientists most likely use classification systems to separate organisms into groups based on similarities or differences in their characteristics because these systems(1 point)Responsesmake it impossible to identify what kind of organism a scientist is studying.make it impossible to identify what kind of organism a scientist is studying.allow scientists to change the name of an organism any time they want.allow scientists to change the name of an organism any time they want.allow scientists to easily identify different kinds of organisms.allow scientists to easily identify different kinds of organisms.make the study of different kinds of organisms very confusing.

allow scientists to easily identify different kinds of organisms.

Infectious agents, such as viruses, bacteria, and fungi, can all(1 point)Responsesinfect nonliving matter.infect nonliving matter.cause disease.cause disease.live for long periods of time outside of a host.live for long periods of time outside of a host.all of these

cause disease.

Examine the organism in the picture below.This organism is multicellular and has tissue organization. The organism gets the energy it needs by decomposing organic matter. To what kingdom does this organism belong?(1 point)Responseskingdom Protistakingdom Protistakingdom Fungikingdom Fungikingdom Plantaekingdom Plantaekingdom Archaebacteria

kingdom Fungi

The organisms shown above belong to(1 point)Responsesthe animal kingdom.the animal kingdom.both the plant kingdom and the protist kingdom.both the plant kingdom and the protist kingdom.the plant kingdom.the plant kingdom.the protist kingdom.