Newest 2026 Questions and Correct Detailed
Answers Already Graded A+
what are the requirements of life? - CORRECT ANSWER-water
food
heat
pressure
oxygen
What is the difference between anatomy and physiology - CORRECT ANSWER-
anatomy- study of structure
physiology- study of function
what are the levels of organization - CORRECT ANSWER-subatomic particle-
protons, electrons, neutrons
atom
molecule
macromolecule
organelle
,cell
tissue
organ
organ system
organism
what are the characteristics of life? - CORRECT ANSWER-movement
responsiveness
respiration
absorption
secretion
digestion
assimilation- changing of absorbed substances into chemically different forms
circulation
reproduction
growth
define homeostasis - CORRECT ANSWER-maintaining of a stable enviroment
,what is a homeostatic mechanism - CORRECT ANSWER-monitors aspects of
internal environment and corrects as needed
*negative feedback mechanism
ionic bond - CORRECT ANSWER-formed when electrons are transferred from
one atom to another
what are covalent bonds - CORRECT ANSWER-when two molecules share
electron
hydrogen bond - CORRECT ANSWER-formed between water molecule,
attraction between positive end of polar molecule and negative end of another
polar molecule
define synthesis, decomposition, and exchange reactions - CORRECT ANSWER-
Synthesis- A+B=AB
Decomposition- AB=A+B
exchange- AB+CD=AD+BC
define reactant - CORRECT ANSWER-starting materials of reactions
, product - CORRECT ANSWER-ending material
define catalyst - CORRECT ANSWER-a substance that speeds up a chemical
reaction
what is an acid - CORRECT ANSWER-dissociates with water
base - CORRECT ANSWER-combines in water
what happens to salts when dissolved in water and what is produced? -
CORRECT ANSWER-The salt molecules are "torn apart" by the water, and are
reduced to sodium (Na+) and chlorine (Cl-) ions.
what is the pH scale? what ions are involved in the pH scale? - CORRECT
ANSWER-pH scale- indicated the concentration of hydrogen ions in a solution,
H+ and OH-
organic molecule - CORRECT ANSWER-contains Carbon and hydrogen and
dissolves in water.