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Svetllana [295]
3 years ago
9

What is the difference between differential and simple stains in biology

Geography
2 answers:
poizon [28]3 years ago
6 0
A simple stain is (one dye) used to show that bacteria are present and what they look like as opposed to other matter and the background. A differential stain (uses two dyes) is used to seperate organisms into groups.
Nataly [62]3 years ago
3 0
A simple stain is used to show that bacteria is present and what they look like opposed to other matter. a differential stain is used to separate organisms into groups.
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Give two possible reasons proposed for the massive extinction that occurred at the end of the Paleozoic Era.
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Answer:

Two possible reasons for the massive extinction at the end of the Paleozoic Era are an asteroid collision and massive volcanic eruptions.

Explanation:

The massive extinction that occurred at the end of the Paleozoic Era is the biggest extinction from what is known so far. The majority of the species died out, and whole families of animals and plants were wiped out of the face of the Earth. It was only small and highly adaptable organisms that managed to survive and give rise to the later life-forms.

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Which one of the following statements is true?
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C

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Two lines extend from point S to create a right angle. The vertical line extends from point S through point R. The horizontal li
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A half-infinite line (also known as a half-line) with one of the two points and is commonly used to represent a ray. The endpoint of a ray is point S. The correct option is B.

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

A half-infinite line (also known as a half-line) with one of the two points and is commonly used to represent a ray. It is assumed to be infinite.

Given that Two lines extend from point S to create a right angle. The vertical line extends from point S through point R. The horizontal line extends right from point S through point T.

Also, A third line extends right and up from point S through point U. This can be drawn as shown below.

Now, since all the ray starts from point S, therefore, the endpoint of a ray is point S.

Learn more about Ray here:

brainly.com/question/17491571

#SPJ1

7 0
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