Which could be the measures of the three angles of an acute triangle?
a. 40 , 90 , 50
b. 70 , 80 , 30
c. 25 , 25 , 130
d. 45 , 45 , 90

Azygote becomes a mature adult through the process of: meiosis or mitosis

Where in the body can you find chemoreceptors? a. on the skin and ears, to detect pressure, touch, motion, and sound b. on the retina, to detect a single photon of light c. on the skin, to detect temperature or specific chemicals d. on the tongue and in the nose, to detect taste or odor

The study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem