7)Dihybrid: The cross between organisms involving two pairs of contrasting traits.

8)Pedigree: A diagram showing relationships between members of a family through genes.
9)Polygenic: Relating to an inheritable character that is controlled by several genes at once.
10)Biotechnology: The changing of living organisms or their components to produce useful products for commercial use.

A) Does the amount of salt in water affect the temperature at which it boils?
B) How long ago did dinosaurs live on the Earth?
C) Who made the first microscope?
D) How many dolphins live in Florida?

2) What is a hypothesis?
A)  A possible answer to a question based off of observations.
B) The study of the natural world and everything in it.
C) An experiment
D) A blood vessel which carries blood toward the heart.

3) What kind of cell has a cell wall?
A) Animal cell
B) Blood cell
C) Plant cell
D) Eukaryote

4) Which of the following is a mixture?
A) salt and pepper combined in a bowl
B) salt dissolved in a glass of water
C) water sitting in a glass
D) all of the above

5) Which process ends up with identical daughter cells?
A) Haploid
B) Mitosis
C) Meiosis
D) Alleles

6)  Which phases of the cell cycle represent interphase?
A) Phases M, G1, and S 
B) Phases G1, S, and G2 
C) Phases S, G2, and M 
D) Phases G1 and G2 

7) What is the monomer of nucleic acid?
A) Amino acids
B) Carbohydrates
C) Lipids
D) Nucleotide 

8) The step of mitosis when the chromosomes line up along the middle of the cell is called: 
A) Telophase
B) Anaphase
C) Metaphase
D) Prophase

9) In DNA adenine normally pairs with...
A) Guanine
B) Thymine
C) Cytocine
D) Adenine

10) What is evolution?
A) Change
B) Process where modern organisms have descended from ancient organisms
C) Trait that shows up in recent parts of a lineage but not in the older members
D) Evolutionary history of lineage

11) What type of tissue covers soft parts of a plant?
A) Dermal tissue
B) Vascular tissue
C) Pistil
D) Meristem

12) Plants are...
A) Heterotrophs
B) Carnivores
C) Autotrophs
D) Organic

13) How much energy is transferred through one trophic level?
A) 20%
B) 100%
C) 5% 
D) 10

14) What is an organism that only eats plants? 
A) Herbivore
B) Omnivore
C) Carnivore
D) Heterotroph

15) What is emigration?
A) When and organism enters a new environment
B) When an organism leaves an environment
C) The number of organisms in an area per unit
D) Population

16) Invasive species...
A) Will help a new environment
B) Can damage a new environment
C) Will kill other organisms
D) Are always beneficial

17) What is the smallest blood vessel in the human body?
A) Capillary
B) Veins
C) Pathogen
D) Gastrulation 

18) What is an agent that causes diseases or illness called?
A) Blastula
B) Marcophage
C) Pathogen
D) Veins

19) What is hypertension?
A) High arterial blood pressure
B) Hemoglobin
C) An artery wall that thickens as a result of an invasion and accumulation of white blood cells
D) Small blood vessel

20) What is population density?
A)  Total variety of organisms within the biosphere
B) Splitting of ecosystems into pieces
C) Number of organisms in an area per unit
D) Greenhouse effect