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Ksenya-84 [330]
3 years ago
5

2. Explain how to focus a microscope using the high power lens. Include any safety issues you need to be aware of such as for th

e Focus adjustment knob.
Biology
1 answer:
Fantom [35]3 years ago
5 0

While using microscopes, one need to take many precautions.

To view any slide on higher resolution, all the focal adjustments should be done with scanning lens. After adjusting the focus with the scanning lens, turn the lens knob to higher resolution. Make sure, you move the lens in such a way that it does not break the slide.

in case, the view of the slide is not clear, then use fine adjustments only. On higher power lens, do not try to adjust focus adjustment knob, as it can break the slide. Before keeping the slide on a microscope, make sure all lenses are clean and the platform is also clean.

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4 0
3 years ago
What is the Endangered Species Act? Describe one of its successes and explain some of the current controversies surrounding it.
frutty [35]

Answer:

The Endangered Species Act was formulated in 1973. This Act was made in order to protect the threatened and endangered species of both plants and animals and also to protect the habitats in which these species live.

One of the major success was that there were many species which actually recovered from this act. For example, the population of the Kirtland's warbler increased from 210 to 1415 from 1973 to 2005.

One of the major controversies which arose from this act was that the critics claimed that this act failed to show major recovery of animals. Out of the total 2000 endangered species listed, only 28 species were properly recovered.

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3 years ago
A Punnett square is used to determine the __________. A. Probable outcome of a genetic cross B. Different forms of a gene C. Res
castortr0y [4]

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4 0
2 years ago
Why are diploid cells abbreviated 2n and haploid cells abbreviated 1n​
Ganezh [65]

Answer:

Diploid cells abbreviated 2n and haploid cells abbreviated 1n​ because 'n' represents number of chromosome present in the cell. In haploid cells the number of chromosome is half in number while in diploid cells the number of chromosome is double so that's why haploid is abbreviated as 1n and diploid is abbreviated as 2n.

Diploid cells are present in body cells while haploid cells are found in sex cells.

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3 years ago
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