Refer to the food web at the top of the page. Which organism occupies trophic level 2? A
nuthatch
B
whiptail
C
jackrabbit
D
wolf

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

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?