Answer:
In animal field studies, why do scientists usually try to work without making the animals aware that the humans are present? It is necessary to observe the animals without disturbing them. When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible?
Producing a contraction that changes both the length and the shape of the cell
Answer:
Corrosion Resistance
Explanation:
aluminum's high resistance to corrosion ensures the safety of the aircraft and its passengers.
Answer:
<u><em>Ozone.</em></u>
Ozone occurs both in the Earth's upper atmosphere and at ground level. Ozone can be good or bad, depending on where it is found. Called stratospheric ozone, good ozone occurs naturally in the upper atmosphere, where it forms a protective layer that shields us from the sun's harmful ultraviolet rays.
Explanation:
I searched and found my answer on Go ogle.
Adenine pairs with thymine (or uracil), and guanine pairs with cytosine.