Carbon dioxide enters the inner spaces of the leaf through the _____

A) cuticle
B) epidermal trichomes
C) stoma
D) phloem
E) walls of guard cells


Answer: C

Biology & Microbiology

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Which of the following describes primary succession?

a. succession on land that previously had no life b. succession that moves a community away from equilibrium c. succession in response to a natural disturbance d. succession characterized by equilibrium

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A mutation that changes a codon sequence, and subsequently changes the amino acid that should have been placed at that point in the polypeptide chain, is a

A) frameshift mutation. B) missense mutation. C) silent mutation. D) nonsense mutation.

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Extracellular matrix is comprised of:

What will be an ideal response?

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Why do NAD attach hydrogens to pyruvate?

What will be an ideal response?

Biology & Microbiology