ALLELES: T- tall or recessive short/ B- black eyes or recessive blue/ W- widow's peak or recessive no peak) Describe the following alleles GENOTYPICALLY: TtbbWW

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

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

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?