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Sever21 [200]
3 years ago
7

What are three ways that substances can be described?​

Biology
1 answer:
Margaret [11]3 years ago
7 0

Answer:

chemical name, for example, benzene;

number, for example, EC number 200-753-7, and.

chemical composition, for example, >99 % benzene and <1 % toluene. The composition is determined by chemical analysis.

Explanation:

hope thishelps!

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The Texas blind salamander (Eurycea rathbunl) lives in the Edwards Aquifer region around San Marcos. Along with other species th
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Answer:

The answer is Protozoa

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7 0
3 years ago
If the average length of a woman's ovarian cycle is 30 days, the average length of her uterine cycles is most likely ____ days.
dybincka [34]

If the average length of a woman's ovarian cycle is 30 days, the average length of her uterine cycles is most likely 28 days.

<h3>What is the ovarian cycle?</h3>

The female ovarian cycle refers to the sequence or cycle that controls the production and release of eggs as well as the the monthly secretion of the hormones estrogen and progesterone.

Hence, if the average length of a woman's ovarian cycle is 30 days, the average length of her uterine cycles is most likely 28 days.

Learn more about ovarian cycle:brainly.com/question/14224887

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6 0
2 years ago
Give two reasons why humans need a balanced ecosystem <br>​
satela [25.4K]

Answer:

us humans need a balanced ecosystem because its what keeps us alive. when having a balanced ecosystem we have cleaned water, purified air, maintained soil, regulates our climate, recycles nutrients, and provides us with food.

6 0
3 years ago
Read 2 more answers
The cane toad, or Rhinella marina, was introduced to the Hawaiian Islands in 1932 by sugar cane farmers. The farmers released th
butalik [34]
The answer is invasive species.

<span>Invasive species are species that are not native to the specific ecosystem, but they are capable of spreading widely through the ecosystem. This way they can threaten native species of the ecosystem or cause environmental harm. 
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<span>After being introduced into the Hawaiian Islands, the cane toads greatly affect local ecosystem. In the new area, they have a few natural predators and are able to spread. If they spread beyond the area they are introduced, they become invasive species which can overgrow native biotopes and are a great threat to the local biodiversity. This could lead to the extinction of some native species.</span>

8 0
3 years ago
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Prior knowledge can be gained from personal experience and
Luda [366]
Can also be gained from natural instinct (you are born with instinct)
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3 years ago
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