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lesya692 [45]
3 years ago
14

HELP PLZZ!!!!

Biology
2 answers:
Delvig [45]3 years ago
8 0
<h2>Answer:</h2>

The option A is the correct option. The fungi share a mutualistic association with the trees.

<h3>Explanation:</h3>

Mutualism or interspecific cooperation is the way two organisms of different species exist in a relationship in which each individual fitness benefits from the activity of the other. And in this case, both plant and fungi are benefited by each other. The plant provides food and habitat for the living of fungi and fungi, in turn, decompose dead organic matter to provide simple compounds to plants.


While in commensalism only one either plant or fungi can be benefited. And it is also not a parasitic interaction.


cluponka [151]3 years ago
4 0

Answer:

It's A

Explanation:

trust me :)

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Yes, that is true, is there something you wanted answered on this question?

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Read the scenarios below. For each of the scenarios, identify the following (you should identify the 3 for EACH of the scenarios
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The following were required;

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<h3>What is a variable?</h3>

A variable is a measurable quantity that changes in an experiment. The variable that is manipulated in the experiment is called the independent variable.

Now these are the variables that are involved in this experiment:

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Explanation:

8 0
3 years ago
Which situation allows for evolution during gene duplication?
alexira [117]
The first step in DNA replication is to ‘unzip’ the double helix structure of the DNA molecule. This is carried out by an enzyme called helicase which breaks the hydrogen bonds holding the complementary bases of DNA together. The separation of two single strands of DNA creates a ‘Y’ shape called the replication ‘fork’. The two separated strands will act as templates for making the new strands of DNA. One of the strands is oriented in the 5’ to 3’ direction (towards the replication fork), this is the leading strand. The other strand is oriented in the 3’ to 5’ direction (away from the replication fork), this is the lagging strand. As a result of their different orientations, the two strands are replicated differently.

For the leading strand:
A short piece of RNA called primer (produced b an enzyme called primase) comes along and binds to the end of the leading strand. The primer acts as the starting point for DNA synthesis. DNA polymerase binds to the leading strand and then ‘walks’ along it, adding new complementary nucleotide bases to the strands in the 5’ to 3’ direction. This is called continuous.  

For the lagging strand:
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<span>
Once all the bases are matched up, an enzyme called exonuclease strips away the primer(s). The gaps where the primer(s) were are then filed by yet more complementary nucleotides. The new strand is proofread to make sure there are no mistakes in the new DNA sequence. Finally, an enzyme called DNA ligase seals up the sequence of DNA into two continuous double strands. During the zipping up of the DNA molecule, there is a possibility that the pairing of bases get shuffled and thus cause for mutation. The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides. The answer is C.</span>
6 0
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Answer:

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Explanation:

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