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levacccp [35]
3 years ago
15

2. Why should you never use the coarse adjustment knob on high power?

Biology
1 answer:
KIM [24]3 years ago
3 0

The coarse adjustment knob is used for large adjustments when focusing a microscope by the time ur at the high power ojective lens its lens would be close to the stage and using the course adjustment knob can cause the lens to  crack or brake the slide


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2. Is Ellie correct in thinking that TSH is a thyroid hormone? Why is her TSH level low instead of high?
denpristay [2]

Answer: Ellie is incorrect in thinking TSH is a thyroid hormone. TSH is a pituitary hormone. TSH is the hormone that tells the thyroid to either create more or less of T3 and T4. Ellie’s TSH islow because the hypothalamus is telling the pituitary gland to release lower levels of TSH because the thyroid is pumping out to high of levels of T3 and T4.

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7 0
3 years ago
Which two pieces of fossil evidence support the idea of continental drift?
trasher [3.6K]

Answer:

C. Lystrosaurus and Glossopteris

Explanation:

3 0
3 years ago
Read 2 more answers
Features unique to mammals include ______.
V125BC [204]
There are a couple features unique to mammals, here are some:

1. Mammary Glands- evolved from modified sweats glands, these are used to create milk for offspring. Only females produce this milk.
2. Hair- this is an adaptation that provides insulation to keep the animal warm, provide protection of the skin, and sometimes camouflage the animal through the hair's color patterns.
3. Sweat glands- while being unique to mammals, they are not present in all of them. For example, whales do not have sweat glands at all because they live in the ocean! 
8 0
3 years ago
Why is the peppered moth situation uncommon
Crazy boy [7]

Answer:

Scientists bred the moths and figured out that the light-colored form of the peppered moth has different genes from the dark form.

Explanation:

8 0
4 years ago
An animals long period of inactivity during winter is called what
Murrr4er [49]
Hello, sorry this is a little late.

I believe the correct answer to your question, "an animals long period of inactivity during winter is called what" would be Hibernation.

Hibernation is when some animals (examples would be bears, and wild rabbits) sleep throughout the entire season of winter, when the temperature is too cold for them. They spend time before hibernation usually stocking up food, and creating a warm place for them to stay.

Hope this helps, and have a great day! :)
8 0
4 years ago
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