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LenaWriter [7]
2 years ago
8

A substance that is produced by a plant that affects how it grows and develops is called a

Biology
2 answers:
faltersainse [42]2 years ago
7 0

Answer:

its hormones

Explanation: i just did the work

Nastasia [14]2 years ago
5 0
A substance that is produced by a plant that affects how it grows and develops is called a HORMONE
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beginner at this what he proves to be true

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Speciation is not a precise division: overlap between closely related species can occur in areas called hybrid zones. Organisms
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The emergence of new species from surviving ancestral species and both species continue to interact during a transition period is known as Sympatric Speciation.

Explanation:

Hybrid Zone is the  area where two species continue to interact. Hybrid offspring are produced by two different species.

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3) reinforces

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3 years ago
In the gram stain procedure the primary stain crystal violet function toA) stain only the thinner peptidoglycan cell wallsB) sta
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Answer:

B) stain only the thicker peptidoglycan cell walls

Explanation:

Gram staining is a technique which was developed by the Hans Christian Gram in 1884 to distinguish the bacterial strains. Based on the colour absorbed and retained by the bacteria, the bacteria are distinguished either as gram-positive or gram-negative.

He used a colour stain- crystal violet which is a positive dye and binds to the cell wall made of peptidoglycan. The crystal violet binds to the cell wall with the help of a mordant called iodine. If this dye retains inside and the cell appears purple then the cell is considered gram-positive else negative.

Thus, Option-B is correct.

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