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labwork [276]
4 years ago
13

4. Which of the following statements about physical digestion and chemical digestion is correct?

Biology
1 answer:
LUCKY_DIMON [66]4 years ago
3 0

Answer:

D

Explanation:

Example the action of teeth on food in the mouth increase surface area for salivary amylase to start digestion of starch

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Stromatolites

Explanation:

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Q: Those are called homolgous structures because the skeletons are very similar and imply a common ancestor!!!! HOW DO I ANSWER
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The skeletons may be similar but it usually focuses on one part. Meaning that the homologous structure would be a monkey paw, or the flipper of a whale.

They would be in the same classification. Such as humans are called homo sapien sapien. The family would be homo if I'm correct, meaning that if scientists are able to use the DNA of that structure to relate it to a common ancestor.

It would be true. Or if it's a multiple choice question, we need to know the choices.

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4 years ago
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Zigmanuir [339]

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