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Nataly [62]
2 years ago
15

Please answer this!!!

Biology
1 answer:
wlad13 [49]2 years ago
8 0

Answer:

absorption of water

energy from sun

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certain cells have densely packed mitochondria and the cristae ( infolded projections of a mitochondrion) are very closely toget
sveta [45]

Answer:

What can be deduced of cell that have densely packed mitochondria and the cristae are very closely together is that its function requires large amounts of energy.

Explanation:

Mitochondria are cellular organelles in charge of energy production. In these organelles occurs oxidative phosphorylation and electron transport chain, whose final product is ATP, an energy molecule.

A <u>cell with a large number of mitochondria, whose crests are very close together and tight, belongs to a tissue that has a lot of activity and its energy requirement is high</u>.

An example of cells with densely packed mitochondria are skeletal muscle and heart muscle.

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Question 13 of 20 :
nikdorinn [45]

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A. Nature exists as a resource that should be preserved for future generations.

Explanation:

Deep ecology movement is an idea that all living organisms on the earth have right to live with their basic moral values. All organisms must be respected irrespective of their size, shape or other physical features. Natural resources are scarce and so they should not be wasted and must be saved for future generations.

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3 years ago
Which of the following takes place during translation?
alexdok [17]

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d) The conversion of genetic information from the language of nucleic acids to the language of proteins

Explanation:

4 0
2 years ago
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When plants are stressed by dry conditions, they secrete the hormone abscisic acid (ABA) and in response the stomata close, even
dimaraw [331]

Answer:

C. K+ ions flow out the the guard cells and water flows out the cells.

Explanation:

The turgidity of the guard cells allows the opening and closing of the stomata. This is especially necessary when it comes to water conservation in plants. In order for the cells to become turgid or flaccid, there must be the influx and out ward movement of water via osmosis.

In order for this the occur the osmotic pressure of the cellular environment must change and this is done by changing the solute concentration.

The pumping in of K+ ions out the cell allows the solute concentration to decrease and this in turn encourages the movement of water across a concentration gradient through a semi-permiable membrane.

The water leaves the guard cells and they become flaccid. This causes the stomata to be covered.

4 0
3 years ago
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What are type II restriction endonucleases? Why are they
Karolina [17]

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DNA.

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Type II restriction endonucleases always cleave at or near their recognition sites. They produce small, well-defined fragments of DNA that help to characterize genes and genomes and that produce recombinant DNAs.

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