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luda_lava [24]
3 years ago
7

The cell membrane around a cell forms a barrier that protects and regulates the cell. Which best describes those that can pass t

hrough?
Biology
1 answer:
pickupchik [31]3 years ago
7 0
Ok I think its small polar molecules but I could be wrong. 
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Shelly wants to find the speed that her dog can run. What should Shelly do?
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Answer:

measure the time it takes for a dog to run a certain distance

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3 years ago
A population is a group of ________.
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Answer:

c. individuals of a single species that live and interact in one area

Explanation:

When some organisms belonging to a single species live together in an area, they make a population. Since members of a population belong to the same species, they are able to interbreed among themselves to produce viable and fertile progeny. They have the same resource requirement and interact with each other. All the plants of <em>Mangifera indica</em> present in an area make a population. Likewise, a group of <em>Panthera tigris</em> living in a forest together makes the tiger population of that area.

8 0
3 years ago
Which two of earth's systems help to regulate climate?
Kitty [74]

The core

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3 years ago
Which of the following is not true of DNA? Which of the following is not true of DNA? It carries amino acids to the ribosome. It
Paul [167]

Answer: The statement "It carries amino acids to the ribosome" is not true

Explanation:

Transfer RNA, also known as tRNA acts as specific carriers of activated amino acids to specific sites on the protein-synthesizing templates of ribosomes.

Thus, the function of carrying amino acids to ribosomes is the role of transfer RNA, not DNA.

8 0
4 years ago
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Which process is used by heterotrophs to obtain preformed organic molecules from the environment?
Nana76 [90]

Answer:

The correct answer is A) ingestion

Explanation:

Heterotrophs are organisms that depend on other organisms to get nutrition because they can not make their food. The process by which they take nutrition is called injection.

During ingestion, they consume the performed organic molecule. Mouth is the organ that helps in ingestion of the food. Then the food is digested in the body of the heterotrophs by the action of different enzymes.  

For example, humans are heterotrophs that do ingestion of food from its mouth and then the food is digested by different hydrolytic enzymes. So the correct answer is A.

8 0
3 years ago
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