Attempt 1 of 2
selective cutting is preferable to clear-cutting because it_
is less expensive
only targets invasive species
requires less man power
targets a small, specific area of trees

targets a small, specific area of trees

Explanation:

You wouldn't want to take a whole forest of trees down at one time because you'd kill a lot of animals and such in the process. Therefore you'd only cut down a selected number.

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 animal that would be cutest if scaled down to the size of a cat? elephant