1. Based on the model, which of the pairs of species most likely have the greatest number
of differences in their DNA and protein
sequences?
a. Radish and seaweed
b. Banana and lemon
c. Onion and radish
d. Banana and onion

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.

Evolution acts upon the population of organisms and not on each individual organism