I lived on a small indonesian island around 18 kya. i used stone tools to hunt animals, but i had a very small cranial capacity (around 400 cc) and a very small body. what fossil species am i?

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things

Why are current extinctions of concern to enviromentalists?