Why is it that evolution genetics and biochemistry are considered as unifying themes in biology

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

How does the study of genetic disorders such as pku biologists understand normal alleles?

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.