In digestion why do some food molecules decrease by the same amount that others increase.

The size.

Explanation:

Some molecules are too big to be digested by the gut without being broken down so the stomach must then use the hydrochloric acid that lies within the stomach & energy to break down the food to be able to absorb the energy from the bigger food molecules.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.

hello there,

guys i’m confused.

which rock will weather faster?

answer: b rock