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GrogVix [38]
3 years ago
12

Which definition is the best for “semipermeable membrane”?

Biology
1 answer:
adoni [48]3 years ago
8 0
A membrane that lets only some things pass through it.
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When viewing the shape of a human cheek cell, what microscope would most likely be used?
pentagon [3]

Answer:

Your answer Is C!!!!! :)))

Explanation:

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3 years ago
"A technician is reading the plates from a sputum culture. On the sheep blood agar (SBA), she sees flat spreading colonies with
sleet_krkn [62]

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P. aeruginosa

Explanation:

<em>P. aeruginosa</em> is a gram-negative bacteria that belongs to the family Pseudomonadaceae.

From the given question the following points lead us to conclude that the colony that will be growing would be of P. aeruginosa :

1. Flat spreading colonies with a metallic sheen on SBA - <em>P. aeruginosa</em> is known to produce smooth colonies with flat edges.

2. Fluorescent green color in the media with clear colonies on cetrimide agar - <em>P. aeruginosa</em> is known to produce pyoverdin which is a fluorescent pigment under low iron conditions.

3. Medium clear colonies that have a "fruity or grape-like odor" on MacConkey Agar - <em>P. aeruginosa</em> has a sweet fruity odor which is its characteristic odor because of the production of trimethylamine.

Thus, from all these characteristics one can conclude that the organism in the culture is <em>P. aeruginosa. </em>

6 0
3 years ago
Assuming that other factors are equal, how are the birthrate and death rate
igor_vitrenko [27]

Answer:

In a stable population, if all the other factors are equal then the birth rate should be equal to the death rate in order to maintain the stability.

Explanation:

The birth rate is described as the number of births taking place in an area per year. Death rate is described as the number of deaths taking place in an area in a year.

In order to maintain a stable population, the birth rate should be equal to the death rate. If there are more number of births than the number of deaths, then it would mean more competition for resources like food, water etc.

5 0
3 years ago
Which type of variable depends on the controlled variables?
Romashka [77]

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b

Explanation:

because of the law of cause and effect change a small part of a structure change the whole thing

8 0
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The answer is stomata
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4 years ago
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