Which of the following choices below shows the correct order from smallest to largest? a. cell → chromosomes → DNA → genes
b. genes → chromosomes → DNA → cell
c. genes → DNA → chromosomes → cell
d. cell → chromosomes → genes → DNA

Which flexible structure that supports the nerve cord and led to the backbone

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the