When scientists take the genes of two different species and combine them, we call this genetic testing gene coding genetic engineering all of the above?

genetic engineering

Explanation:

When scientists take the genes of two different species and combine them, we call this as genetic engineering. Genetic engineering is a process of manipulation of the genome of the organism by changes. This involves the introduction of new genes and also involves the genes which are responsible for a particular disease or disorder. In this mechanism, certain traits in organisms are introduced by combining the genome of the other organism. This helps in improving the quality of the organisms as the organisms attains the beneficiary traits of their own and that of the organism.

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.

the correct answer is b. possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes.

explanation: