They are both important because mechanical has to do with physical - cause mechanical means physical, so chewing your mouth is physical (you break your food into smaller pieces physically). And then chemical digestion is when food and saliva mix together. They happen when breaking down food into nutrients - enzymes. Enzymes are important for that process, because they make a nutrient.
Hope this helps!!
<u><em>Answer:</em></u>
<u><em>Combustion</em></u>
<u><em>Explanation:</em></u>
<u><em>The step in the carbon cycle didn’t really exist before the industrial revolution was Combustion</em></u>
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<u><em>please mark me brainliest <3</em></u>
<span>The difference that you are searching for is the addition of Appendages. They appeared in Cambrian animals and were used to increase their physical capabilities like when sensing and processing the information found in the environment. Common appenadges found in animals are things like antennae found in insects that are used to help them communicate or notice things or similar things.</span>
Answer:
a. Carbohydrates provides energy and regulation of blood glucose.
b. The monomer/building block of a carbohydrate is a monosaccharide.
c. The building blocks of lipids are fatty acids.
d. Some examples can be oils, vitamins, and fats.
e. Lipids store energy.
f. The building blocks of proteins are amino acids.
g. Examples of proteins are meat, fish, eggs, and cheese(mainly foods you consume).
h. The building block of a nucleic acids is a nucleotide.
i. The biomolecules that have CHO are carbohydrates and lipids.
j. The quote"You are what you eat" means that it is important to eat good food in order to be healthy and fit.
<u><em>Hope it helps!</em></u>