1. How are fem different from towering plants? (Select all that apply.) Ferns reproduce by spores.
Pers are the only vascular plants
Flowering plants are seedless.
Flowering plants reproduce by spores.
Pers are seedless

What causes an unsaturated fatty acid to have a different shape than a saturated fatty acid? o a. unsaturated fatty acids have more hydrogen atoms. o b. unsaturated fatty acids have double carbon bonds. o c. unsaturated fatty acids have more nitrogen atoms. o d. unsaturated fatty acids have single carbon bonds.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they