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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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In which of the following ways are bacteria similar to birds
pentagon [3]

Answer:

They both use DNA as their genetic material.

Explanation:

Bacteria are simple prokaryotic organisms which lack membrane bound organelles. On the other hand, birds like higher organisms are eukarotyotic organisms with proper membrane bound organelles. Other than this that both bacteria and birds are living organisms,  one way in which bacteria and birds are similar is that they both have DNA as genetic material which they pass to their offspring. Although in the case of bacteria there is no variation is offspring however in case of birds there can be because genetic shuffling takes place and offspring is not an exact replica of parents while in case of bacteria they are.

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3 years ago
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Alexandra [31]

Answer:

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.

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1.
vazorg [7]
Genetic engineering because the genes of the plants were modified
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trapecia [35]

Answer: B

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