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never [62]
2 years ago
11

Worth 10 pts!Please answer ASAP!

Biology
2 answers:
creativ13 [48]2 years ago
7 0

Answer:

Its changable

Explanation:

Thats the answer

Elena L [17]2 years ago
6 0

Answer:

the correct answer is B it is changeable

Explanation:

Science knowledge may change due to the development of new technics for observing investigations also through new ways of thinking or framing the questions asked.

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An air pressure of 1,005 millibars is equivalent to approximately how many inches of Mercury?
s344n2d4d5 [400]

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2145

Explanation:

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3 years ago
Which of the following is true of malignant tumors?
kodGreya [7K]

Answer:

Malignant tumors are cancerous. They develop when cells grow uncontrollably. If the cells continue to grow and spread, the disease can become life threatening. Malignant tumors can grow quickly and spread to other parts of the body in a process called metastasis.

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3 years ago
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The Colorado river flows through the Grand Canyon. Which characteristic of the river is directly affected by the amount of preci
Irina18 [472]

Answer:

Volume, and February

Explanation:

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4 0
3 years ago
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suppose you found a bone of a mastodon which had 6.25%c14and93.75%n14 how long ago did this animal die​
lisabon 2012 [21]

Answer:

t= 3886.18 years old

Explanation:

Whenever an animal dies de C14 and N14 begin to disintegrate in such a way that the proportion between C14 and C12 decreases, with a semi-disintegration period of 5.730 years, T. To get to know how long it takes an element to disintegrate, we must use this semi-disintegration period, which is the time it takes until the amount of the element is reduced to its half.  

We can find the age of the fossil, t, by using the next formula:

t = - (T x ln (C14))/ ln (2)

t = - (5730 x ln (0.625)/0.693

t= - (-2693.12)/0.693

t= 3886.18  

3 0
3 years ago
Where does the carbon in fossil fuels come from?
fiasKO [112]

Answer: Fossil fuels are made up of dead plant life example trees, bushes, etc., and when burned they release carbon in the air

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