2. Suppose that you crossed two plants that were heterozygous for two traits and got a 3:1 ratio
instead of a 9:3:3:1 ratio in the offspring. How could this be explained?

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%