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

Describe at least 2 abiotic and two biotic factors found in the desert biome how do these abiotic factors interact with the biotic factors

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.