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USPshnik [31]
2 years ago
8

Explain the steps that you would use to focus on a specimen under a compound light microscope.

Biology
1 answer:
Rashid [163]2 years ago
8 0

To start, move the objective lens to its lowest power setting. Place a slide on the stage with the label side up and the cover slip in the middle. You can only use the coarse focus knob when the power is low. If you can't see anything, move the slide a little while you look and focus. If nothing shows up, turn down the light and move the slide a little while you're looking and focusing. Once you're in focus on low power, move the slide to make the object of interest in the middle of it. Turn the objective to medium power and only change the fine focus. If you need to, turn the objective to high power and only adjust the fine focus.

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Which organism in the food web below is likely to store the least energy?
tankabanditka [31]

Answer;

-Cougar

Explanation;

-The amount of biomass decreases from the lowest trophic level to the highest.  In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy.

-The organisms in the highest trophic level receives the lowest amount of energy. This is because only 10% of energy moves from one level of the food pyramid to the next. When heat comes from the sun. 90% of it is lost to the environment, 10% is consumed by the plants (primary producer). As a primary consumer ingests the plant, 90% of the original heat from the sun is lost to the environment and the primary consumer receives 10%. The secondary consumer receives 10% and 90% is lost, and so forth.


4 0
3 years ago
1. Who is widely considered to be the
4vir4ik [10]

Answer:

A. gregory mendel

Explanation:

I did a biography on him in 8th grade

5 0
2 years ago
Read 2 more answers
Using the model presented, what is being formed, B, from the process represented by C? Correctly identify B and C as well as the
Nonamiya [84]

The provided question is incomplete as it lacks the image required to identify the, however the correct image is attached:

Answer:

B is protein

C is the process of translation

Explanation:

The given image is a flow chart representation of the process of the protein synthesis from the DNA molecule by a two-step process that is combinedly known as the central dogma.

The first step is a transcription in which an RNA molecule (mRNA) is synthesized from the DNA molecule in organism nucleus (in eukaryotes only). The second step is to making a polypeptide chain of amino acid with help of rRNA, tRNA, and mRNA, this process is known as translation and represented in the image as C and B is the protein that formed.

Thus, the correct answer is - B is protein

C is the process of translation

6 0
3 years ago
The fundamental resolution of an optical instrument is set by
yaroslaw [1]

Answer:

The wave nature of light is the fundamental resolution of an optimal instrument.

Explanation:

All the optical instruments are working on light that's why they are known as optical instrument. Optics means the behavior of light or sight. Light is an electromagnetic radiation which comes in the category of electromagnetic spectrum. It travels in the form of wavelength.

So, optical instruments are based on wave nature of light.

3 0
3 years ago
Read 2 more answers
How is a shell a biotic factor?
konstantin123 [22]
Shells are the exoskeletons of clams, snails and oysters. Hope that helps
4 0
3 years ago
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