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quester [9]
4 years ago
10

What four major divisions make up the history of life on earth in the geologic time scale

Biology
1 answer:
Umnica [9.8K]4 years ago
5 0

Precambrian time, the Paleozoic era, the Mesozoic era, and the Cenozoic era
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What is the name for a substance that keeps<br> the pH in cells within the 6.5 to 7.5 pH range?
joja [24]

Answer: Neutral

Explanation:

“6.5 to 7.5—neutral. over 7.5—alkaline. less than 6.5—acidic, pH less than 5.5 are considered strongly acidic.“

3 0
3 years ago
What part of the body is not working as it should when you have asthma
Nutka1998 [239]

Answer:

The Lungs

Explanation:

Asthma is a lung disease that affects your airways. With asthma, the lining of your airways is constantly hypersensitive, resulting in redness and swelling (inflammation). It's similar to how sunburned skin turns red, irritated, and sensitive. The airways become hypersensitive to things you are exposed to on a daily basis, or asthma "triggers." a trigger could be a common cold, stress, changes in the weather, or environmental factors like dust, chemicals, smoke, or pet dander.

Airway remodeling can occur as a result of poor asthma management. When asthma is untreated or poorly managed, it can lead to airway remodeling, which is a serious condition. The lungs become scarred, asthma medications become less effective, and less air can pass through your airways. It is not necessary to remodel the airways.

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?  

8 0
3 years ago
What is the primary objective in a telescope? What two materials can it be<br> made of?
Dennis_Churaev [7]

Answer:

The objective itself is usually a cylinder containing one or more lenses that are typically made of glass; its function is to collect light from the sample.

Explanation:

A telescope mirror can be made from glass that is somewhat less pure than that used to make a lens, since light does not pass through it.

If you have any questions feel free to ask in the comments - Mark

Also when you have the chance please mark me brainliest.

4 0
3 years ago
Name any two body systems in the human body and name at least one function of each system
Dmitriy789 [7]
<span>Cardiovascular / Circulatory system: ...Digestive system / Excretory system: ...Endocrine system: ...Integumentary system/ Exocrine system: ...Lymphatic system / Immune system: ...Muscular system/Skeletal system: ...Nervous system: ...<span>Renal system / Urinary system:</span></span>
4 0
4 years ago
If you insert the DNA from one organism into the DNA of another, the new combination is called:
s2008m [1.1K]

Answer:

A and B are correct

Explanation:

7 0
3 years ago
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