In the embryonic stage, what is the term for the inner layer that produces the digestive system, liver, pancreas, and respiratory system?

In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated