How does the cell wall protect a plant cell?

Penelope studies how the structure and function of the nervous system is related to behavior. she is a psychologist

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?