Models need to be changed when

a.) they are based on experimental data.
b.) scientific understanding changes.
c.) they represent a phenomenon.
d.) they are designed to answer a question

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.

Give an example of a trait that is controlled by more than one gene.

Will camels hump ahrinks.give reason