Incomplete dominance produces a new heterozygous phenotype such as the purple color in this example
Explanation:
The evolution of photosynthetic organisms, about 4.9 bilion ago, changed the earth’s atmospheric composition. The photosynthetic organism took up most of the carbon dioxide and evolved oxygen. They are responsible for the Great Oxygenation Event.
As oxygen filled the atmosphere, it became possible for ozone (O₃) to form. In the upper atmosphere ultraviolet light rays split molecular oxygen into atomic oxygen ( through photolysis), and the oxygen atoms react with oxygen molecules (O₂) to form ozone (O₃). This is a forward and reverse reaction because the ozone also decomposed back to molecular oxygen.
The formation of ozone helped the colonization of land by life because ozone prevents most UV from reaching earth's surface and protected the genetic material from the ionizing effect of ultraviolet rays.
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For more on ozone check out;
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Question 1
car·ti·lage<span>firm, whitish, flexible connective tissue found in various forms in the larynx and respiratory tract, in structures such as the external ear, and in the articulating surfaces of joints. It is more widespread in the infant skeleton, being replaced by bone during growth.</span>
<span>a particular structure made of cartilage.
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Question 2
The adult human </span>skeletal system<span> consists of 206 bones, as well as a network of tendons, ligaments and cartilage that connects them. The</span>skeletal system<span> performs vital </span>functions<span> — support, movement, protection, blood cell production, calcium storage and endocrine regulation — that enable us to survive.</span>
</span>
Answer:
It's A
Explanation:
A specific combination of control elements in each genes enhancers coordinates the simultaneous activation of the genes. Its correct don't worry :)
To absorb nutrients and help us grow and to get rid of harmful bacteria