Where does your food spend most of its time? (which is the longest organ) ?

Explain what the relationship between soils and acid deposition is?

During photosynthesis, the energy from sunlight is used to split water molecules. What happens to the hydrogen ions that are split from the water molecules?

The concept of continental drift, continents drifting over the ocean floors, was proposed by Alfred Wegner in 1915. This concept was replaced by the theory of plate tectonics in the 1960s.

Fossil evidence tells us that many new species will be evolving. many species that once lived no longer live. the future of specific species is questionable. all species that ever existed are still alive.

Fungus-like protist reproduce with

What is the total amount of tissue of all organisms in a food chain called?

If an entire stack of rock layers has been folded, which of these would have occurred most recently?

Which kingdom of organisms is usually multi-celled, heterotrophic, and has cell walls made of chitin, divided by openings called septa?

What are some adaptations of the kangaroo rat that allow it to survive in the desert biome? How about the saguaro cactus?

Cytochalasins bind actin and block actin microfilament assembly. Cells treated with cytochalasins will not divide. How do cytochalasins block cell division?