(? ) which fossils do invertebrate paleontologists study?

The large ground finch obtains food by cracking seeds. what is its short, strong beak an example? a) tendency toward perfection b) adaptation of a species over time c) selective use and disuse of an organ over time d) scarcity of recourses

What is thought to have caused the mass extinction at the end of the cretaceous period?

_is a product of the first stage of photosynthesis.atpglucosecarbon dioxidewater