The venom of a black widow spider is toxic to the nervous system.
I believe D, as prokaryotes come in a very wide range.
Answer:
The answer to your question is, DNA provides instructions to cells in forming an organ.
A dissolved oxygen level that is too high or too low can harm aquatic life and affect water quality. ... Fish and crustaceans obtain oxygen for respiration through their gills, while plant life and phytoplankton require dissolved oxygen for respiration when there is no light for photosynthesis
Noun, Genetics. 1. the principle, originated by Gregor Mendel, stating that during the production of gametes the two copies of each hereditary factor segregate<span> so that offspring acquire one factor from each parent. Expand. Also called Mendel's first law, Mendel's law.</span>