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USPshnik [31]
3 years ago
5

O survive and advance, humans have used the natural resources in their environment for at least as long as recorded history.

Biology
2 answers:
Vilka [71]3 years ago
7 0
The answer is C) coal. This is because coal is a natural resource and is made over millions of years; coal is being burned faster than it can be made.
Stolb23 [73]3 years ago
6 0

Answer:

C.  Coal

Explanation:

Coal is a fossil fuel that develops from remains of ancient organisms. Death of plants and their subsequent burying in ground initiates the process of coal formation. Anaerobic conditions do not allow the bacteria and fungi to decompose the wood completely. The buildup of heat and pressure on partially decomposed wood converts them into coal over a long period of time. Since coal formation is a slow natural process, it is a non-renewable energy source with limited supply.

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If you have just eaten, your body secretes ______ to uptake glucose; if you have not eaten all day, your body secretes ______ to
pav-90 [236]
If you have just eaten, your body will secrete insulin. Insulin is the hormone that allows glucose to enter cells. That way they will have the proper energy for their normal functions.
If you have not eaten for a while, your body is running out of glucose to feed the cells so it needs to secrete another hormone called glucagon. This hormone is the complete opposite of insulin because it breaks down glycogen, proteins and fats into glucose.
6 0
3 years ago
What is cyclin dependent kinase?​
Bezzdna [24]

Answer:

please mark as brainliest answer as it will also give you 3 points

Explanation:

Cyclin-dependent kinases (CDKs) are the families of protein kinases first discovered for their role in regulating the cell cycle. They are also involved in regulating transcription, mRNA processing, and the differentiation of nerve cells.[1] They are present in all known eukaryotes, and their regulatory function in the cell cycle has been evolutionarily conserved. In fact, yeast cells can proliferate normally when their CDK gene has been replaced with the homologous human gene.[1][2] CDKs are relatively small proteins, with molecular weights ranging from 34 to 40 kDa, and contain little more than the kinase domain.[1] By definition, a CDK binds a regulatory protein called a cyclin. Without cyclin, CDK has little kinase activity; only the cyclin-CDK complex is an active kinase but its activity can be typically further modulated by phosphorylation and other binding proteins, like p27. CDKs phosphorylate their substrates on serines and threonines, so they are serine-threonine kinases.[1] The consensus sequence for the phosphorylation site in the amino acid sequence of a CDK substrate is [S/T*]PX[K/R], where S/T* is the phosphorylated serine or threonine, P is proline, X is any amino acid, K is lysine, and R is arginine.[1]

7 0
3 years ago
People can't drink ocean water. However, in very dry areas near the ocean, people purify ocean water. They must use
GenaCL600 [577]
Microorganisms such as bacteria can be removed by disinfection. Certauns substances called biocides are addes to water to make it pure. Purification can also be done by UV-light .
4 0
2 years ago
During which period did T. Rex reign?
Furkat [3]
The answer's D. Cretaceous.
3 0
3 years ago
Read 2 more answers
What is the difference between primary dimensions of diversity and secondary dimensions of diversity?
Sveta_85 [38]

Answer:

A. Primary dimensions are less changeable, while secondary dimensions can change and are less visible.

Explanation:

The differences between primary and secondary dimension of diversity are as follows -

A) Primary Dimension

a) Primary dimension are those which are salient and hence they cannot change

b) Some common examples of primary dimensions are - ethnicity, sexual orientation, ethnicity,  gender, race, physical abilities/qualities, age etc.

A)  Secondary Dimension

a) Secondary dimension are not only limited to specific features and hence they can change with time.

b) Some common examples of secondary dimension are - geographic location, marital  status, parental status. work experiences, educational background, income,military experience, religious beliefs, etc.

Hence, option A is correct

6 0
3 years ago
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