Q: The normal response of the respiratory system to elevated ph is to increase the amount of what in the blood? Choices: - glucose - acid - red blood cells - co2 A:
co2

Q: What is a reaction in which an atom or molecule is added to an unsaturated molecule, making a single product? Choices: - complete reaction - homeostasis - single reaction - an addition reaction A:
an addition reaction

Q: Q: What is the term for groups of three successive nucleotide bases in dna? Choices: - triads - tertiary bases - triple play - triplets A:
A: triplets

Question: Q: What type of ions play critical roles in light-dependent reactions? Choices: - calcium - silicon - helium - hydrogen A:
Answer: hydrogen

*Question*
Q: Memory t cells are long-lived and can even persist for how long? Choices: - eons - days - minutes - lifetime A:
**Answer**
lifetime

Q: Three distinct layers or tunics form the walls of what structures; the first is a smooth, inner lining of endothelial cells in contact with the red blood cells? Choices: - lungs - white blood cells - alveoli - blood vessels A:
blood vessels