Which is an innovation of gymnosperms?
gymnosperms are the first seed plants.
gymnosperms are the first flowering plants.
gymnosperms are the first vascular plants.
gymnosperms are the first spore plants.

Why are adults bigger than they were as children biology

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt