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Blababa [14]
3 years ago
14

One reason why a molecule may not be able to pass into or of the cell

Biology
1 answer:
Norma-Jean [14]3 years ago
3 0

All cells have selectively permeable membranes, which means that only they let certain important molecules inside the cell, while the others stay outside the cell.

This occurs by the process of diffusion or osmosis.  

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Some plant seeds germinate better if scarified in the stomach of a bird or being singed in a forest fire.
Stolb23 [73]

Answer:

FALSE

Explanation:

because birds doesn't chew their food because they doesn't have teeth therefore the seed remains in one piece and they still can germinate.

5 0
3 years ago
Alcohol can be considered a __________. A. Gateway drug B. Hallucinogen C. Barbiturate D. None of the above
kozerog [31]

<u>Answer</u> : option A gateway drug


<u>Explanation</u>:

  • A gateway drug is considered to be a type of habit forming drug which itself may not be addictive in nature but their use may lead to the person getting addicted to other drugs.
  • The increase in probability of using other illegal drugs when a person is using a gateway drug is because of the alteration in the brain which leads to an inclination towards drug usage and a carefree behavior.
  • Besides alcohol, marijuana and tobacco are also considered to be gateway drugs.
  • It has been shown that the use of alcohol acts a gateway for many drugs such as cocaine.
  • The gateway drug theory has stated if any of the gateway drugs or a mixture of them is introduced into a life of a teenager then it leads to an increased chances of experimentation with other drugs in the future.
  • Since, alcohol is linked to an increased probability of using illegal drugs in the future, it is considered to be a gateway drug.

8 0
4 years ago
Dr. Alvarez wanted to see if he had discovered a new element, so he analyzed his new element and performed an experiment to dete
Galina-37 [17]
Dr Casey Repeating the experiment
8 0
3 years ago
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The periodic table of elements is organized by the number of:
Vlad1618 [11]

Answer:

D

Explanation: let me know if i'm wrong!

8 0
4 years ago
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Cellular respiration is the process that converts
Angelina_Jolie [31]

Answer:

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.

Simplified reaction: C₆H₁₂O₆ (s) + 6 O₂ (g) → 6 CO₂ (g) + 6 H₂O (l) + heat

Explanation:

Answer expert verified.

5 0
3 years ago
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