The circulatory system in animals is similar to

(1) photosynthesis in plants

(2) vascular transport in plants

(3) transpiration in plants

(4) digestion is plants

The pH of the acid in the stomach is 2. When a person has heartburn, the acid in their stomach is coming up the esophagus (lower throat) and burning the lining of the esophagus. Why would a person take an Alka Seltzer tablet for heartburn?

You are analyzing a compound in a laboratory. you find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. how will you classify the compound?

Why do all my Girlfriends always cheat on me? I do nothing wrong and I treat them like no man ever has before. In a good way of course!

What is the source of free amino acids in cytoplasm?

A reaction between zinc and hydroelectric acid can be slowed down by A. Cooling the acid B. Using large lumps of zinc instead of zinc powder C. Using dilute acid rather than concentrated acid D. All of the above

What nuclear symbol has 13 protons and 15 neutrons

Which of the following statements about solutions is NOT true? Select one: a. A solution has the same properties throughout. b. Solutions contain a solvent dissolved in a solute. c. The solute in a solution can be a solid, liquid, or gas. d.

If the molar mass of NaCl is 58.44 g/mol, what amount of NaCl (in mol) is contained in 250.0 mg of NaCl?

How many hydrogen atoms are contained in 167 grams of propane?

How many grams of CO2 are in 6 mol of the compound (this is a science question) ? and the units?