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Soloha48 [4]
3 years ago
10

What is which sphere

Biology
1 answer:
Annette [7]3 years ago
4 0

Answer:

frog is the best answer

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What does it mean for a membrane to be selectively permeable?
maw [93]

Answer;

Semi-permeability means that only certain molecules are allowed to pass through.

Explanation;

-Semi-permeability is one of the features of a cell membrane, which means that the membrane allows selective movement of materials in and out of the cell; that is only certain molecules can enter or leave the cell.

-For example smaller molecules such water and ions such as potassium and sodium ions are able to leave and enter the cell, while other molecules that are large such as protein molecules can not enter or leave the cell.

3 0
3 years ago
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Can someone help me on this question THANKS :))
Vlad [161]

Answer:

They can interbreed

Explanation:

6 0
3 years ago
Sound is created by our vocal cord due to
Marizza181 [45]

Answer:

c

Explanation:

for me Vibration in throat

8 0
3 years ago
Compare and contrast the cell structures / organelles found in plant and animal cells.
Allushta [10]

Answer:

Same: Mitochondria,Cell membrane,Vacuole

Different: Cell wall,Chloroplast

Explanation:

I hope this helps :)

4 0
2 years ago
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6. A scientist measures the circumference of acorns in a population of oak trees
melisa1 [442]

Answer:

6. 2 cm

8. Greater than 2 cm and less than 2 cm

Explanation:

Complete Question

6. A scientist measures the circumference of acorns in a population of oak trees and discovers that the most common circumference is 2 cm. What would you expect the most common circumference(s) to be after 10 generations of stabilizing selection?

-2 cm

-Greater than 2 cm or less than 2 cm

-Greater than 2 cm and less than 2 cm

-Can't tell from the information given

8. Refer to question 6, but this time answer what you would expect after 10

generations of directional selection.

-2 cm

-Greater than 2 cm or less than 2 cm

-Greater than 2 cm and less than 2 cm

-Can't tell from the information given

Solution -

6. In an stabilizing selection, the average trait of a given population is favored over extreme values. Hence, it can be said that one specific trait is over presented in a given population. For example – uniform human birth weight, number of eggs a bird lay etc.  

Here in this case if most common circumference is 2 cm , then the tree population will try to have this trait as a stabilizing trait.  

Thus, option A is correct

8. In a  directional selection, the genetic variation decreases as per the environmental change. And hence the average trait will not be selected. Instead traits either higher or lower the average values will be preferred.  

Thus, option C is correct

3 0
3 years ago
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