Cell membrane is a semipermable, which means that certain molecules will be able to pass through the membrane. It is contains phospholipids. But for smaller molecules such as CO2 and Water, it can pass through the membrane through simple diffusion. Cell membrane controls the movement of the materials into and out of the cell.

5 0

3 years ago

What moves to opposite poles in Anaphase 1

Katarina [22]

✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧

Hello!

✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧

❖ The homologous chromosomes (sister chromatids) move to opposite poles of the cell. The sister chromatids are pulled to opposite poles by spindle fibers.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

5 0

3 years ago

in 6-8 sentences, explain how stream volume and speed affect the size, shape and flow of streams and rivers.

sukhopar [10]

Explanation:

The higher the volume of water in a stream, the higher its speed and the wide its size and shape which ensures a proportionate flow rate.

To quantify how the speed of stream, we use the quantity, discharge in hydrology;

Discharge is the volumetric rate of water flow past a point at a particular time.

Discharge = $\frac{volume of water}{time}$

We see that discharge is directly proportional to the volume of water in a stream.
It is inversely proportional to the time taken.
We know that volume is the amount of space occupied by a body. It is function of its size and shape.
A big water body that is deeper, wider and longer will have more wate and a greater discharge.

learn more:

Rejuvenation brainly.com/question/14372082#

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6 0

3 years ago