Answer: Chemical weathering changes the composition of a rock, while physical weathering does not.
Explanation: The definition of a chemical change is a change that cannot be reversed and is caused by a chemical reaction. In this case, a chemical change to a rock would change the composition of the rock while physical changes may change the appearance of the rock, but not the composition.
The energy content of food is described in terms of calories because the energy in food ultimately becomes heat.
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Answer:
B. Disruptive Selection
Explanation:
the population is divided into two distinct groups, or is disrupted so the gentics start to vary between the separted populations over time.
Answer:
maltose
Explanation:
Amylase, any member of a class of enzymes that catalyze the hydrolysis (splitting of a compound by addition of a water molecule) of starch into smaller carbohydrate molecules such as maltose (a molecule composed of two glucose molecules).
The answer is B. hope you get it
