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solong [7]
1 year ago
7

What type of eye protection is required in a lab? a. Lab-grade goggles all the time for anyone working with chemicals b. Lab-gra

de goggles all the time for everyone c. Lab-grade goggles if you don’t wear glasses.
Biology
2 answers:
Strike441 [17]1 year ago
8 0
It depends on your teacher, it should be A. It could be B if that’s what your teacher wants but I would go with A.
Serggg [28]1 year ago
5 0
The answer is that I would use will be A,
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John and Joshua used a light microscope to observe a plant cell. They indicated the magnification as x1000. Given the eye piece
Zinaida [17]

Answer:

Objective Lens Magnification = ×100

Explanation:

In a microscope, the ocular (eyepiece) lenses are usually to a magnification of ×10, meaning that it magnifies the image 10 times. While the standard objective lenses have magnifications of ×4, ×10, ×40, and ×100.

In order to work out the total magnification, the individual magnifications of the ocular and objective lenses have to be known, after which a simple multiplication of both magnifications will give the total magnification used.

Total Magnification = (eyepiece lens magnification) × (objective lens magnification)

1000 = 10 × obejcetive lens magnification

Dividing both sides by 10

Objective lens magnification = 1000 ÷ 10 = 10

∴ Objective lens magnification = ×100

7 0
3 years ago
Which of these pairs of body structures BEST illustrates a homologous relationship?
Rashid [163]
<span>A) Leg of a horse and the leg of a dog.
The rest of the choices are examples of convergent evolution because they are similar in  structures that evolved in separate places in the animal kingdom.
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Choices to this question are:
A) the leg of a horse and the leg of a dog
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C) the fin of a dolphin and the fin of a shark
D) the beak of a bird and the beak of a turtle</span>
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3 years ago
Men do not have all ___ in their testes at birth.
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I believe it would be sperm 
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In 1665, What structures did Robert Hooke observe through a microscope?
Semenov [28]
In 1665, Robert Hooke observed D. Cell Walls through a microscope!
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║PLEASE ANSWER ASAP! WILL GIVE BRAINLIEST!║
jok3333 [9.3K]

Answer:

For specification to occur, two new populations must be formed from one original population, and they must evolve in such a way that it becomes impossible for individuals from the two new populations to interbreed.

idk if this helps but i tried lol and no need for brainliest

3 0
2 years ago
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