To maintain adequate nutrition, animals require dietary access to certain amino acids. an amino acid that is referred to as "nonessential" would be be

What is a possible diameter for a typical neutron star? A 2km B 20km C 200km D 2000km

What happens to the temp at which rock melts with depth?

Which statement best describes the central nervous system? A) It senses stimuli and carries out a reaction. B) It secretes hormones. C) It is made up of all nerve cells. D) It is made up of the brain and the spinal cord.

Which part of the earth system contains the air we breathe? Atmosphere Lithosphere Hydrosphere Magnetosphere

How the carbon atom's bonding tendencies lead to the formation of macromolecules

What is the biggest difference between primary succession and secondary succession?

Circuit A has a 3 Ω resistor running on a 9V battery. Circuit B has a 0.5 Ω resistor running on a 3V battery. Which of the following circuits would have a higher amperage?

What is not an important factor or factors affecting coastal landform changes as a result of sea level rise today?

What is an example of a renewable resource that needs to be closely managed

What does fitness mean in terms of evolution?