The first 22 pairs of chromosomes are homologous in a normal person is that always true for the 23rd pair of chromosomes?

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.

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

Which of the following graphs have the same wavelengths