Some cells can die as a result of external agents such as poison or trauma. However, most cells die through a process known as apoptosis, or programmed cell death.
What is a likely, consequence of a mutation that prevents apoptosis?
A A tumor
BA loss of amino acids
CA lack of cell division
D A reduction in chromosome number

Explanation: ( c ) because a lack of cell division

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.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .