Which label belongs in the region marked X? O produces neutrons
O forms heavier atoms
O joins two nuclei
O forms lighter nuclei
Brian creates the diagram below to organize his notes
on nuclear fission and fusion.
Fission
Fusion
X
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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.

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.

the answer would be b.:

880,000.

hope it ,

bioteacher101