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mafiozo [28]
3 years ago
14

Some maerials can move across the cell membrane against a concentration gradient by

Biology
1 answer:
KATRIN_1 [288]3 years ago
7 0
Facilitated diffusion goes against a concentration gradient
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In V_____some plants produce offspring which are genetically similar to them
olga55 [171]

This is called asexual reproduction. Asexual reproduction is when a organism craetes a offspring by itself, it is genetically similar to them.

In<u> asexual reproduction </u>some plants produce offspring which are genetically similar to them.

6 0
2 years ago
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What is it called when the atmosphere absorbs things and it goes into the clouds?
pochemuha

I believe the answer you're looking for is:

Condensation- If the air cools, then water vapor molecules slow down and some can not remain a vapor. They cluster in the air to form tiny liquid droplets. This is called condensation. In clouds, the liquid droplets formed by condensation are small and light enough that they stay in the air.

<em>hope this helps! :)</em>

5 0
3 years ago
All of the alkali earth metals, Group 2, have two valence electrons. Which of these would represent the oxidation number of the
stiv31 [10]
Plus 2 should be your answer
6 0
3 years ago
Which short-term environmental changes would a very small asteroid or comet impact on Earth most likely cause? Check all that ap
MAVERICK [17]

Answer: We got it wrong when we checked off flooding. We are going with C) craters on surface. AND E) death of organisms and populations.

Explanation:

7 0
3 years ago
What percent of iodine has decayed if 5 half lives have passed?
goldfiish [28.3K]

Hello!

A half-life is the amount of time it takes half of an element to decay. For example, after one of carbon's half-life, half of carbon would've decayed.

Now, we can calculate how much has decayed if 5 half lives have passed.

1 -> 50% (1) -> 25% (2) -> 12.5% (3) -> 6.25% (4) -> 3.125% (5)

Therefore, there would be 3.125% left of iodine. However, your question is asking what percent has decayed. Therefore, subtract 3.125 from 100% to get your final answer.

100 - 3.125 = 96.875

Therefore, your final answer is 96.875% of iodine has decayed if 5 half lives have passed.

Hope this helps!

3 0
3 years ago
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