Which statement correctly describes a major defect of the student model in representing the structure of a plant cell

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.

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

There are only about 250,000 known fossil species. true or false