The answer is B.The respiratory system supplies the oxygen that the cardiovascular system transports to the different cells for the production of energy.
Bacteria is named based on their basic shapes
Answer:
With respect to the composition of DNA, in an analysis it can be found that the proportions of nucleotides are A + C = G + T (option a).
Explanation:
The proportion of nucleotides in a DNA molecule can be established according to the sequence of these nucleotides on both complementary strands, since the purinic bases of one strand are complemented by the pyrimidinic bases of another:
- <em>Adenine is complemented with Thymine A=T</em>
- <em>Guanine is complemented with Cytosine G=C</em>
From this we can deduce that in a DNA molecule with two chains there will be the same amount of adenine and thymine, as well as the same number of guanine with respect to cytosine, so:
<em> A + C = G + T</em>
An example of this would be a known DNA molecule (hypothetical), with 5 molecules of Adenine and 7 molecules of Guanine. In this case there are 5 Thymines, complementary with Adenine, and 7 Cytosines like Guanine:
<em> A + C = G + T</em>
<em> 5 + 7 = 7 + 5</em>
I think it 700 million years because I took the same question and that’s what I put.
Answer
Two structures located in the diencephalon are hypothalamus and epithalamus
Explanation
The diencephalon of the human brain has four main structures which are the hypothalamus, the thalamus, the epithalamus and the subthalamus. Thalamus structure is at the center of the brain which relays sensory impulses to the cerebral cortex. The hypothalamus regulates the temperature of the body while the epithalamus maintains the circadian rhythms.
