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lyudmila [28]
3 years ago
15

The thickest layer that contains the mixture of gases called air is

Biology
1 answer:
Vesnalui [34]3 years ago
4 0
The answer is e.
The troposphere.
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What molecule in your body would be responsible for Gathering and attaching nucleotides​
Firlakuza [10]

Answer:

I would say Phosphate Groups.

Explanation:

Nucleotides are joined together by covalent bonds between the phosphate group of one nucleotide and the third carbon atom of the pentose sugar in the next nucleotide.

3 0
3 years ago
Which of the following statements are true about water? Water is the least important nutrient Water is important in helping thin
sleet_krkn [62]
Water aids the body's heating system
3 0
3 years ago
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Why are G protein only found in Eukaryote cell ?
Levart [38]

Answer:

they bind to protein-coupled transmembrane receptors with higher complexity than those found in prokaryotes

Explanation:

G-proteins are proteins found inside the cells that function as molecular switches which are activated by binding to guanosine triphosphate (GTP), while they are inactive by binding to guanosine diphosphate (GDP). The G-proteins bind to G-protein-coupled transmembrane receptors (GPCRs) in the cytoplasmic region. The GPCRs are a very diverse group of proteins that are activated by extracellular molecules ranging from small peptides to large proteins, including pheromones, neurotransmitters, light-sensitive compounds, etc, thereby allowing them to respond to diverse stimuli from the extracellular environment. In consequence, it is reasonable to suppose that the signaling pathways in which G proteins are involved have a higher complexity level than those observed in primitive prokaryotic organisms.

6 0
4 years ago
The element calcium has the atomic number of 20 and the mass number of 40, how many neutrons dose it have
coldgirl [10]

The mass number is the sum of the number of protons and number of neutrons the atom has.

So, we can write the equation as:

x + 20 = 40

x = 20 neutrons.

8 0
3 years ago
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Which of the following human activities would be expected to be the biggest contributor to air pollution? a. driving b. restaura
Ulleksa [173]
A. driving. A single instance of a nuclear weapon would cause more pollution than a single instance of driving, but while millions of cars drive everyday, nuclear weapons are very rarely detonated. All the cars in the world contribute the most to pollution, especially because some countries still don't regulate the pollutants in exhaust.
4 0
4 years ago
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