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agasfer [191]
4 years ago
11

What is a active transport

Biology
2 answers:
I am Lyosha [343]4 years ago
6 0
The movement of Ions and molecules across a membrane.

Hope this helps, and please mark brainliest! :)
maria [59]4 years ago
3 0
The movement of Ions or molecules across a membrane from low concentration to high concentration. Which requires energy. 
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Animals with a three-chambered heart would include:_______
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Animals with a three-chambered heart would include Amphibians.

  • Amphibians have three-chambered which comprises of two Atria and one ventricle. Examples of Amphibians include Frog, Toads, Salamanders.
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1 year ago
In a biology lab exercise, you are asked to examine cells of a growing onion root tip, that has been sectioned to show many cell
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Because the chromatin condenses into compacted chromosomes.

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What's the difference between a phase and a checkpoint? in your own words
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