You cross aabb with aabb to produce f1 of aabb. when you cross f1 with itself you see a 3: 1 phenotypic ratio. what can you conclude from this?

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

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.