Choose all the answers that apply.
the cardiovascular system transports material for the
respiratory system
digestive system
endocrine system
excretory system
nervous system

The cardiovascular system: carries hormones for the endocrine system; transports oxygen and carbon dioxide for the respiratory system; carries nutrients for the digestive system; and works with the immune system to fight infection.

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.

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.