chapter 6 science

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What type of respiratory structures do spiders have?

book lungs

Tiny, thin-walled blood vessels where the blood and body cells exchange substances are called

capillaries

The waste product that animals breathe out into the atmosphere is called ______.

carbon dioxide

What are the two gases that animals exchange with their surroundings?

carbon dioxide and oxygen

Which body system helps animals get rid of waste?

excretory system

t or f. A butterfly's mouthparts are adapted to lap up nectar.

false

t or f. The esophagus is a tube that connects the mouth and the intestine.

false

t or f. The process in which cells use oxygen and digested food molecules to release energy is called diffusion.

false

t or f. The respiratory system removes oxygen from the body.

false

Animals that have both pointed and flat teeth are most likely

omnivores

What type of circulatory system do grasshoppers have?

open

What are the two types of circulatory systems?

open and closed

Animals need to breathe in _______ from their environment to stay alive.

oxygen

Water is excreted from the kidneys, lungs, and ______.

skin

t or f. Animals that strain their food from the water are called filter feeders.

true

A bird's ____ -loop circulatory system is efficient at delivering oxygen to cells.

two

How many chambers does a fish heart have?

two

Vertebrates have kidneys to filter certain wastes from the body. What do the kidneys produce?

urine

Which animal has a digestive system most similar to a human?

wolf


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