Each member of a class sampled a piece of ptc testing paper. thirty people sampled the chemical.

twenty persons were tasters. how many had homozygous genes?

10-30
10
10-20
0-10

Explain the importance of producers, primary consumers, secondary consumers. and decomposers in an ecosystem

Nucleic acid certain protein cell membranes certain carbohydrates

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.