Air is forced into the lungs by the contraction of thea. alveoli.c. diaphragm.b. bronchioles.d. heart.

Answers

Answer 1
Answer: I think the answers Diaphragm

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_______ cause(s) populations to change over time.Natural disasters
Natural selection
Weather
Genes

Answers

Natural selection causes populations to change over time,

which of the following is an example of a primary consumer gaining energy? a. a caterpillar crawling up a leaf b. a robin swallowing a worm c. a bear eating a salmon d. a squirrel eating a nut

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The correct answer is D.) "a squirrel eating a nut"

A squirrel eating a nut  is a example of a primary consumer gaining energy

Muscle cells would contain a high number of

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muscle cells would contain a high number of mitochondria
musles need energy and mitochondria gives energy to the cell
tip: mitochondria is the powerhouse of the cells.

What is produced during transcription?A. RNA molecules

B. DNA molecules

C. RNA polymerase

D. proteins

Answers

RNA molecules are produced during transcription.

Answer: The answer is A. RNA molecules

Explanation:

Which is an example of dehydration synthesis?

Answers

A dehydration synthesis is a type of chemical reaction. It is also the process of two joined molecules or compounds followed by the removal of water. One example of dehydration synthesis is alcohol condensation to make an ether product

Give an example of a testable question that could be investigated:A non-testable question: _____

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how do plants grow        non testable