PLEASE HELP ASAP! This tree species was preserved as a fossil in the Arizona desert. The species is now extinct. Describe what the environment was like when the tree lived and how it is different now. Then, infer why this type of tree and other living things that lived with it are extinct.

Which beat describes the brain stem

Two critical interventions to turn around the opioid crises are:

1. isogamy 1 organisms with gametes of the same size and shape 2. anisogamy organisms with gametes of different sizes and shapes 3. oogamy 2 organisms with gametes of the same shape but different sizes 4. gonads gamete-producing organs in lower plants 5. gametangia gamete-producing organs in animals