Answer:
Diseases that can reproduce pandemics
In meiosis? Tetrads maby? When two homologus chromosomes do crossing over they're called tetrads so..
D. Photosynthesis only takes place in the light, while cellular respiration takes place in the light and dark.
A compound is organic if it contains carbon covalently bonded to other atoms. Most often, the other atoms include hydrogen, oxygen, and/or nitrogen. A few carbon compounds, such as simple oxides (e.g. CO2) and cyanides (e.g. KCN) are excluded arbitrarily.