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12345 [234]
3 years ago
13

What is the function of a selectively permeable membrane? A. It allows no large molecules to leave the cell and all large molecu

les to enter. B. It allows some molecules to enter the cell and blocks entry to others. C. It allows all molecules to enter the cell but blocks them all from leaving. D. It allows all molecules to enter the cell and allows all molecules to leave.
Biology
2 answers:
alexandr1967 [171]3 years ago
6 0

Answer: Option b: it allows some molecules to enter the cell and block entry to others.

Explanation: selective permeability allows those molecules to enter the cell which are small, uncharged. Large molecules pass slowly.

Maslowich3 years ago
4 0
B. It allows some molecules to enter the cell and blocks entry to others.
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Hello can you help me please thanks!
Blizzard [7]

Answer:

They are about 1/10th the size of a typical human cell. Microbes are generally measured in the scale of one millionth of a meter, which is known as a micrometer.

Explanation:

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Advertising objectives can be classified based on three primary purposes. what are the three​ purposes?
Viefleur [7K]
The three primary purposes that advertising objectives can be classified by area; To inform; this is in the case of a new product where the company needs to inform the customers and create awareness on the existence of a new product. Secondly; To persuade; once you are in a competitive environment there is need to persuade the customers to buy your product. Lastly, To remind; this is especially important for a mature brand. 
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The chytrid fungus Batrachochytrium dendrobatidis is colonizing frogs across the globe causing massive mortality and even pushin
Elanso [62]

Answer:

Parasitism

Explanation:

Batrachochytrium dendrobatidis is a parasitic chytrid fungus which is responsible for the declining population of amphibians in the rain forests of Panama and Australia.

The fungus grows on the keratinized layer of epidermis on amphibian skin and makes a thick covering of fungus on the amphibian's skin. So as amphibian's skin helps them to maintain the proper osmotic balance in the body so when a thick fungus grows on their skin they are not able to maintain the correct osmotic balance in their body which leads to amphibian death.

So as Batrachochytrium dendrobatidis is a parasitic fungus and gets its nutrition from the frog body and do not kill frog immediately as in predation therefore this relationship can be considered as parasitism.

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3 years ago
I need help with this
Gekata [30.6K]
What do u need help with?
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3 years ago
Which of the following is not a contributing factor to ecosystem stability species, genetic,ecosystem, or abiotic diversity.
insens350 [35]

Answer:

Ecosystem.

Explanation:

Ecosystem is not a contributing factor to ecosystem stability whereas, species, genetic, and abiotic diversity are the factors that contributes in the stability of an ecosystem. The diversity of species greatly affected the ecosystem stability if more species are present in he ecosystem. The abiotic factors also plays an important role in the stability of an ecosystem because these abiotic factors causes changes in the ecosystem environmental conditions.

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3 years ago
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