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Mademuasel [1]
2 years ago
9

Which of the following statements is true?

Biology
1 answer:
Alex Ar [27]2 years ago
5 0
It’s D, you need oxygen so it’s obviously not B. The nitrogen cycle is very important, and you need all the cycles to live so C is incorrect as well.
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Life as we know it depends on the genetic code: a set of codons, each made up of three bases in a DNA sequence and corresponding
slava [35]

Answer:

In the most general case of x bases and y bases per codon, the total number of possible codons is equal to xy . In the case of the hypothetical Martian life-forms, is the minimum codon length needed to specify 17 amino acids is 5 (25 = 32), with some redundancy (meaning that more than one codon could code for the same amino acid).  For life on Earth, x = 4 and y = 3; thus the number of codons is 43, or 64. Because there are only 20 amino acids, there is a lot of redundancy in the code (there are several codons for each amino acid).

Explanation:

8 0
3 years ago
Maggots feed on dead and decaying organisms for energy. What are maggots?
Vikentia [17]
Maggots consume dead or decaying organisms so they are classified as a decomposer.

Decomposition is a process by which organic substances, like leaves or dead animals, are broken down into simpler matter.
A lot of different types of organisms, called the decomposers, will consume the organic substances and continue an essential part of the nutrient cycle. These organisms can be both bacteria, fungi but can also be insects.

This is important for recycling the organic matter that occupies space in the biosphere and that way, continues the movement of energy and matter in ecosystems.
4 0
3 years ago
Read 2 more answers
Can someone help me with number 7 pls ???
Naya [18.7K]

M1V1=M2V2

M1 * (650 ml) = 0.675 M *450 ml

M1= (0.675 M * 450 ml) / 650 ml

M1= 0.467 M

6 0
3 years ago
The output region is the site of ______________________.
tester [92]

Answer:

The correct answer is option C (voltage gated Na+ channels).

Explanation:

Output region or axon terminal is the structure of neuron which transmits the signals to other nerve cells.

The signal is transferred via action potential generated by the dendrite cell which moves along the axon and reaches the synaptic junction.  

At the synaptic junction, voltage-gated channel (Na+) channels located in the membrane of the axon terminal cell opens due to the changes in the electric membrane potential which play important role in returning the depolarized cell to a resting state.

Thus, option C (voltage-gated Na+ channels) is the correct answer.

7 0
3 years ago
Which of the following continents was not covered by ice during the Pleistocene ice age?
s2008m [1.1K]
I think the correct answer from the choices listed above is option C. The continent that was not covered by ice during the Pleistocene ice age. This is because the southern location of this nation made it much harder for ice to form, even during this time. Hope this answers the question.
5 0
3 years ago
Read 2 more answers
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