Hair and nails are part<span> of the integumentary </span>system<span>.</span>
Answer:
They slowly lose energy.
Explanation:
High-energy electrons give the chain either NADH or FADH2 to complete it.
Low-energy electrons form water by decreasing the oxygen molecules.
<span>Fireflies
use the bioluminescence to attract mates for mating hence key in reproduction.
Therefore, beetles from different species should have different lighting
patterns so that they can only attract mates of the same species. This would
avoid interspecies mating which would probably involved expending energy in
produce nonviable offspring which is inefficient (hence will be unfavoured
natural selection). </span>
<em>Full Question:</em>
<em>Which tissue is correctly paired with its primary cell type?</em>
<em>bone: fibrocyte</em>
<em>bone: osteoblast</em>
<em>connective tissue proper: chondroblast</em>
<em>cartilage: fibroblast</em>
Explanation:
<em> </em><u><em>bone: osteoblast</em></u>
<u><em></em></u>
<u><em></em></u>
Osteoids comprise, significant sections of the entire bone matrix, and this includes fibers of collagen which give bone its flexibility and mechanical strength this allows born to resist stretching and twisting forces.
Osteoblasts are highly specialized cells within bone which formulate new bone through the production or secretion of parts of the organic matrix; this is referred to as the osteoid and mediate the calcification (fortification with allium) of osteoid during the formation of mature bone matrix.
Learn more about bone growth and development at brainly.com/question/6957100
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