Answer:
When fluids (liquids and gases) are heated, they expand and therefore become less dense. Any object or substance that is less dense than a fluid will float in that fluid, so hot water rises (floats) in colder water.
Explanation:
When you heat up water, the water molecules start moving around faster and faster. ... So hot water is less dense than cold water. When you put the two together with the hot water on the bottom, the hot water rises to the top.
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<span>The role of a restriction enzyme is essentially used to cut a single gene from a larger piece of DNA. It has a very important role to play in experiments investigating cloning, and in the construction of particular DNA molecules.</span>
The correct answer for the given statement above would be true. Yes, it is true that local topography and sea surface temperature contribute to differences in climate between various localities. In fact, these factors contribute largely towards variations in the climate of places. Hope this answers the question.
Answer:
They look different
Explanation: Look at them. Yes ok good
<span>maintains a constant INTERNAL environment
so other options included internal variable and external environment. but its internal and environment</span>
