Which two elements are always found in amino acids? a nitrogen and sulfur b carbon and oxygen c hydrogen and phosphorus d sulfur and oxygen

Well let's see, amino acids are part of the Protein bio molecule, which has carbon, oxygen, hydrogen, and nitrogen. Since amino acids are the monosaccharide, you can cross off A, C, and D.

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.