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nydimaria [60]
2 years ago
8

Which definition is the best for “semipermeable membrane”?

Biology
1 answer:
RideAnS [48]2 years ago
5 0

it is a barrier with tiny openings that lets some ,but not all, matérials pass through

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An Asian elephant has a weight of 52,900 newtons. This enormous weight is balanced on four feet. In a circus act, these elephant
Aleonysh [2.5K]

Answer:

Option B, 18.11 \frac{N}{cm^{2}}

Explanation:

Given-

The average surface area of one foot pad of an elephant is 2920 cm^{2}\\

Weight of an Asian elephant is 52900 newton

As we know, pressure is equal to total weight divided by total area of the surface on which it is concentrated.

Thus, pressure on one foot  pad of elephant is \frac{52900}{2920} \frac{N}{cm^{2}} \\

= 18.11\frac{N}{cm^{2}}

Hence, option B is correct answer

7 0
3 years ago
Please help!!! I was sick when I got this for homework so I have no clue.
den301095 [7]

Answer:

Number 3 is “dark”

Explanation:

After the Industrail Revolution, there was a large growth in dark peppered moth population.

6 0
2 years ago
what would be the chance of a homozygous recessive female and heterozygous male having a child that is
NNADVOKAT [17]
It is 50% homozygous recessive, and 50% heterozygous
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Frustration occurs in any situation where the pursuit of a goal is thwarted. please select the best answer from the choices prov
gulaghasi [49]
The answer is true
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8 0
3 years ago
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At a point during a cell's development, it begins to differentiate. How does differentiation occur?
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