III. True-False questions. (1 point each = 5 points): 1. Diffusion will occur, i
ID: 45451 • Letter: I
Question
III. True-False questions. (1 point each = 5 points):
1. Diffusion will occur, if a concentration gradient exists.
True
False
2. When a founder population has a small gene pool, evolutionary change is more likely to be rapid than if the founder population has a large gene pool.
True
False
3. Stabilizing selection is a pattern of natural selection that favors an average, not extreme, expression of a trait.
True
False
4. Once an adaptive feature appears, it remains in all the descendant unless the species becomes extinct.
True
False
5. Humans are more likely to be infected by viruses after the viruses had a chance to multiply outside the body on surfaces touched by infected people.
True
False
IV. Matching of Terms/Concepts with Definitions/Associations. Place the correct number on the line behind each term. (1/2 point each=5 points)
Term or Concept
Water molecule ___
Carbon ___
Homeostasis ___
Ionic Bonding ___
Covalent Bonding ___
Carbohydrate ___
Enzyme ___
Acid ___
Base ___
Lipid ___
Definition/Association
1. energy source
2. two atoms sharing electrons
3. electron donated/received
4. hydrophobic
5. element found in all living organisms
6. catalyst
7. OH- > H+
8. polar
9. characteristic of all living organisms
10. H+ > OH-
Explanation / Answer
1) True
2) False
3) True
4) True
5) False
Water molecule-8
Carbon-5
Homeostasis-9
Ionic bonding-3
Covalent bonding-2
Carbohydrate-1
Enzyme-6
Acid-10
Base-7
Lipid-4