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Rus_ich [418]
3 years ago
15

1. John observed bacteria at 100X under the oil immersion and then decided to go back to 40X

Biology
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

The observed image will not be sharp

Explanation:

When 100x microscope objective lens is being used, light refraction in the air is enough high to produce image alterations. Image distortions can be minimized by immersion oil because this liquid has a higher refractive index than air. However, light refraction is not usually noticeable when using 4x, 10x and 40x objective lenses. Moreover, this image will not be sharp after putting oil on the slide and going back to the 40x objective, it is for that reason that the 40x is called 'high dry' lens. In consequence, it is required to clean the immersion oil off the 40x objective. In general, it is required to  to remove the oil and refocus off the slide and lens immediately after oil immersion (it can be done by using an oil-soluble solvent).

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Marta_Voda [28]

Answer:

yes

Explanation:

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7 0
3 years ago
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bonufazy [111]

Answer:

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I hope It helps! Have a great day!

Lilac~

5 0
2 years ago
Read 2 more answers
Which reactant of photosynthesis is also involved in climate change?
choli [55]

Answer:

B. Carbon dioxide

Explanation:

First of all, let’s write out the photosynthesis equation to identify the products and reactants.

6CO2 + 6H2O + energy —> C6H12O6 + 6H2O

In a chemical equation with the arrow pointing right, the reactants are on the left and the products on the right.

In photosynthesis, the reactants, carbon dioxide, water, and energy, react to form the products of glucose (sugar) and oxygen.

Now, let’s look at the answer choices. We can automatically eliminate choices A (oxygen) and D (sugar) because they are products.

We are left with B (carbon dioxide) and C (water). Water isn’t really considered a major contributor to climate change. Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, causing climate change.

Therefore, the best answer choice is B. Carbon dioxide

6 0
3 years ago
Two quick multiple choice biology questions! (For a couple extra points) ANSWER BOTH SERIOUSLY OR YOUR ANSWER WILL BE REMOVED
monitta
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5 0
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Fantom [35]
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