Gastric juice is produced by the stomach.

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How do some cells become brain cells and others become skin cells

How do plant systems work together to make movement of liquid possible

Historical path leading to the widespread adoption of sugar cultivation in americas:

Plants have structural organization. Which structures are classified as plant organs?

Why do you think the bones of the fetal skull are not fused at birth

Robert Hooke first used the term cell in 1665. However, nearly 200 years passed before scientists developed the cell theory. Why did it take so long between the first use of the term cell and the development of the cell theory?

What is the smallest lithostratigraphic rock unit? formation bed layer group

Which structure in plants produces a substance that protects the extending roots from developing friction? only right answers

A true-breeding pea plant with round, green seeds was crossed to a true-breeding plant with wrinkled, yellow seeds. Round and yellow are dominant traits. The F1 plants were allowed to self-fertilize.

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