A. The cold cream will drop to the bottom of the cup. When it warms, some of it will rise back to the surface.
Explanation:
If the paramecium was not able to contract its contractile vacuole, it would be in danger of bursting. The cell would not be able to hold too much water. ... When Amoeba is placed in salt water, it will lose water by exosmosis and will shrink.
Answer:
D. Solid Ice Crystals
Explanation:
"Cirrus clouds are wispy, curly, or stringy. They are found high in the atmosphere—typically higher than 6,000 meters (20,000 feet)—and are usually made of ice crystals." -National Geographic
Answer:
A catalyst speeds up a chemical reaction, without being consumed by the reaction. It increases the reaction rate by lowering the activation energy for a reaction.
Explanation:
Answer:
Explanation:
The decrease in the birth rate would lead to overall decrease in the population, as the number of new individuals added to the population would be less.
An increased in the immigration of individuals, would increase the overall of number of individuals in a particular area, so, it would lead to increase in population.
The decreased infant mortality or overall mortality would allow the survival of more individuals in a particular region, which would cause an increase in the population.
