How many taxa or levels exist in the phylogentic?
a)7
b)4
c)6
d) 8​

Which statement best describes the nature of science? a. science discoveries using the latest technology are the most valuable. b. scientific theories and laws are based on beliefs and popular opinion. c. scientific ideas change over time as new information is discovered. d. science is superior to other fields such as art, philosophy, and music. i think its c

Kelly ran electricity though a sample of water using electrolysis. the water changed into two gases, x and y. it was not possible to break down the gases x and y into simpler particles.

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time