Question 4 (1 point) A person is in a rowboat. The person exerts a force on the water with the paddle, causing the water to move. The paddleboard also moves,
but in the opposite direction. Which statement best explains why this happens?
a
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Action and reaction forces
Newton's 2nd Law
Law of Conservation of Momentum
Inertia

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.

its 42

i say its d?