After a particularly strenuous workout, Javon feels especially good. Javon's euphoria may reflect the release
of the brain's natural painkiller called:
dopamine.
glutamate
endorphins.
serotonin

Genetic diversity is the variation in the genes of an entire species. each circle represents a population of a particular species in different habitats. select the population with maximum genetic diversity

Twind is considered to be an abiotic factor because it.?

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?