Biology, 30.09.2019 17:30 sierrawalk2283
Why do arteries need to be thick, muscular, and elastic?
a.) to make our bodies strong for movement
b.) to withstand the pressure of the blood that is being pumped by the heart
c.) to pull the blood back to the heart from all areas of the body
d.) to withstand changes in blood temperature
Answers: 2
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Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.
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Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.
Answers: 3
Why do arteries need to be thick, muscular, and elastic?
a.) to make our bodies strong...
a.) to make our bodies strong...
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