Answer:
Blood oxygen levels I think I'm not sure
Explanation:
Nuclear fusion is a process in which two small nuclei combine together to result in the formation of a larger nuclei.
In Sun, the first step of hydrogen fusion includes combining of two hydrogen nuclei to result in the formation of a deuterium, positron and neutrino.
The nuclear fusion reaction inside the sun is as follows.

Thus, we can conclude that products of step 1 of the hydrogen fusion process in the Sun are isotope of hydrogen, a neutrino, and a positron.
The terrestrial planets are Mercury, Venus, Earth, and Mars.
Here's the explanation in regards to the Goldilocks Theory.
The Goldilocks Theory is often used by astrologists to describe the conditions of Earth's positioning in the solar system. The Goldilocks Zone was described by Stephen Hawking as "like Goldilocks, the development of intelligent life requires that planetary temperatures be ‘just right’” The Goldilocks theory argues that a planet must be neither too far away from nor too close to a star and galactic center to support life, while either extreme would result in a planet incapable of supporting life. Terrestrial planets such as Mercury, Venus, Earth, and Mars are more likely to lie in the Goldilocks zone due to their close proximity to their home star along with other crucial factors that allow for life to exist.
Answer:
A
Explanation:
<em>The field of </em><em>recombinant DNA technology</em><em> is a thoroughly modern discipline that has led to new ways to treat infectious diseases.</em>
<u>Recombinant DNA technology involves the process of combining DNA of different organisms and inserting such in a host organism in order to elicit desirable genetic characters that could be of value to different fields in science.</u>
The fields in which recombinant DNA technology has found applications include agriculture, medicine, and industrial productions. With this technology, new drugs and methods of treating diseases have been developed in the area of medicine, disease-resistant crop varieties have been developed in agriculture, and important chemicals for production have been developed in industries.
<em>Correct option:</em><em> A</em>