Apopulation of plans going on an island consist of two varieties ones with thorns in the other without over a period of many years, the variety with someone’s gradually disappeared. which process most likely brought about this change in the plant population? natural selection gene flow genetic drift a random mutation

How can you approximate the number of calories required to keep you in energy balance?

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.