What word describes a lymphadenectomy in which only the lymph nodes are removed?

What are some things that limit population growth?

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?