Based on current data;
- The amount of carbon dioxide put into the atmosphere annually dueto human activities is 840 gigatons
- The amount of carbon in the atmosphere is 10 gigatons
- The amount of carbon stored in fossil fuels is 10,000 gigatons
<h3>What is the carbon cycle?</h3>
The carbon cycle a cycle showing how carbon is recycled between the atmosphere and earth.
The carbon cycle ensures that their is a balance of carbon in the atmosphere as well as on earth.
Human activities have increased the amount of carbon in the atmosphere.
The amount of carbon dioxide human activities put into the atmosphere annually in the present day is 840 gigatons.
The amount of carbon in the atmosphere is 10 gigatons
The amount of carbon stored in fossil fuels is 10,000 gigatons
Therefore, it can be concluded that human activities disrupt the carbon cycle.
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Answer:
Revolving Service Structure (RSS) of launch pad 39B
Watson and Crick's model explained mutability because bases pairs can suffer changes (mutations) during DNA replication. Moreover, this model also explained stability because DNA strands are held together by hydrogen bonds.
Deoxyribonucleic acid (DNA) is a double helix molecule composed of two long chains of four types of nucleotides, each containing one different nitrogenous base, i.e., Adenine, Guanine, Cytosine and Thymine.
In Watson and Crick's model, both DNA strands are held together by hydrogen bonds between nitrogenous bases on opposite DNA strands, thereby providing stability to the DNA molecule.
In DNA, Guanine always pairs with Cytosine by three hydrogen bonds, while Adenine always pairs with Thymine by two hydrogen bonds.
Moreover, Watson and Crick suggested that mutations could occur as a consequence of a base occurring very infrequently in one of the less likely tautomeric forms during DNA replication, thereby also explaining the mutability of life.
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Answer:
D.both A and B
Explanation:
because if there some option,like abcd and the letter d. is both a and b that is the correct answer.
Answer:
1. Binding of insulin to the alpha subunit of the insulin receptor
2. Activation of insulin receptor tyrosine kinase
3. Phosphorylation of IRS proteins
4. Activation of PIP3-dependent protein kinase B (PDK1)
5. Phosphorylation of phosphinositide 3-kinase (PI-3K)
6. Conversion of PIP2 to PIP3
7. Activation of Akt
8. Glut4 receptors transported to cell membrane
