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sergij07 [2.7K]
3 years ago
6

Help please it is biology 1

Biology
1 answer:
Leya [2.2K]3 years ago
5 0

Answer:

The answer is 50%

Explanation:

The rest of the answers are unreasonable

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What animsl an detect sound frequency of 67,000hz
arlik [135]
You spelt animals wrong smh. 

anyways, the answer to your question is dogs. 
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The picture below shows a type of fish that is adapted to live in the weedy areas of freshwater lakes. image Which best describe
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I think the answer would be A because the fish does look like a plant
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A protein helps transport a neutral substance from a region of higher concentration to a region of lower concentration. The tran
LuckyWell [14K]

Answer: The correct answer is option C

FACILITATED DIFFUSION.

Explanation: FACILITATED DIFFUSION is a form of passive transport,it is the process by which substances(molecules) move from a region of higher concentration to a region if lower concentration along their concentration gradient through the help of a membrane transporter forming a pore or channel(Protein).

Facilitated diffusion dies not require high energy to occur since a concentration gradient is involved.

3 0
3 years ago
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The brain volumes ​(cm cubed​) of 20 brains have a mean of 1116.2 cm cubed and a standard deviation of 127.7 cm cubed. Use the g
Shkiper50 [21]

Answer:

Yes

Explanation:

Range rule of thumb predicts the Range to be  a multiple of 4 of the standard deviation or to be four times  the standard deviation. Making the usual values equal to 2 standard deviations distanct of the mean of the data distribution.

In a given distribution with mean and standard deviation that is obtained, the usual values in mean (as seen in the attached image).

2*standard deviation and mean + 2*standard deviation.

If the data point is not up to the mean

- 2* standard deviation is taken to be significantly low.

If the data point is more than the mean

+ 2*standard deviation is taken to be significantly high.

Let's take the xbar to be the mean and s as standard deviaiton

Given,

mean, xbar = 1116.2

standard deviation, s =127.7

The range rule of thumb shows that the usual values are within 2 standard deviations from the mean

Lower boundary

      = xbar - 2s

       = 1116.2 - 2(127.7)

       = 860.8

Upper boundary

      = xbar + 2s

       = 1116.2 + 2(127.7)

       = 1371.6

We should note that 1411.6 is not between 860.8 and 1371.6, which connotes that 1411.6cm^3 is unusually high.

3 0
2 years ago
A student is observing a cell on a microscope slide and notices cell walls and membrane-bound organelles The student concludes t
Yuri [45]
C. The cell must be a plant cell. 

Only plant cells have cell walls. Bacteria cells and animal cells do not. Both animal cells and plant cells have membrane-bound organelles, but since the student saw a cell wall, it must be a plant cell.

Hope this helps! :)
7 0
2 years ago
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