Which is an example of an insertion mutation that changes all of the amino acids that follow the mutation? 1) cag - ttc - acg mutates to cag - tta - cac - g 2) cag - ttc - acg mutates to cag - ttc - acc - acg 3) tac - cat - ggc mutates to aac - cat - ggc 4) tac - cat - ggc mutates to tac - cat - gg

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

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.

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.