How did short term catastrophic events, such as volcanic eruptions and asteroid collisions affect the climate and biosphere?

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

Match with o for organic and i for inorganic for each compound