Answer:
D. Warm front
Explanation:
Warm fronts typically have warmer and more moist air than the air in front of it. Replacing the cold air with warm air can cause precipitation.
D) <em><u>a beneficial mutation that increased survival of certain plants that reproduced and passed the mutated gene to offspring.
Hope this helped! xD</u></em>
Answer:
Channel protein.
Explanation:
Channel protein have gate that opens and close which allow the passage of polar substance or ions to move to permeable membrane of the cell by diffusion. They are water filled and allow the movementof charged molecules inside and outside the cell membrane i.e polar molecules move through non polar bilayer of the cell membrane.
<span>Electrons are not distributed or shared same because of oxyen that is being attracted strongly. Water is a "polar" atom, implying that there is an uneven sharing of electron in its thickness. Water has an incomplete negative charge ( ) close to the oxygen molecule due the unshared sets of electrons, and fractional positive charges ( ) close to the hydrogen particle</span>
If a student made a model of an onion skin cell using a microscopic magnification scale of 500:1 and the length of the modeled cell is 15 cm, the real cell's length would be 0.03 cm.
The scale is 500:1. This means that the dimension of the real cell without being magnified under the microscope would be 1/500.
Thus, if the length of the cell under the microscope is 15 cm. This length has been multiplied by 500. In order to get the real length, it must be divided by 500.
15 x 1/500
= 0.03 cm
More on microscopic magnification can be found here: brainly.com/question/14668612
