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NC EOC Biology Review
Test Description: Released EOC 2019
Instructions: Answer all questions to get your test result.
1) Which is a primary function of a vacuole in a cell?
A
storage
B
protein synthesis
C
reproduction
D
enzyme production
2) What determines the function of a specialized cell?
A
the number of chromosomes in the cell
B
the number of ribosomes in the cell
C
they type of RNA in the cell
D
the active genes in the cell
3) In nature, which type of behavior causes animals to produce aggressive displays and sounds?
A
imprinting
B
conditioning
C
territoriality
D
habituation
4) What will most likely occur if the population of the world continues to increase at predicted rates?
A
All human diseases will be eliminated.
B
The human race will rapidly become extinct
C
There will be an increase in biodiversity as a result of improvements in technology.
D
There will be more rapid depletion of natural resources
5) What will most likely happen if a nonnative species is introduced into a stable ecosystem?
A
The native species will have to compete for resources with the nonnative species and the ecosystem will become unbalanced
B
The native species will change their diet, and the ecosystem will remain stable.
C
The native species will move to another area and the ecosystem will remain stable.
D
The native species will share their food with the introduced species and the ecosystem will become unstable
6) Why must DNA replication occur before a cell can divide by mitosis?
A
to cause all of the cells produced to have half the number of chromosomes as the parent cell
B
to maintain the same number of chromosomes in the daughter cells as in the parent cell
C
to allow crossing over to occur in each of the cells produced
D
to cause one of the cells produced to have double the number of chromosomes as the parent cell
7) During which phase of the cell cycle does most cell growth occur?
A
prophase
B
mitosis
C
interphase
D
cytokinesis
8) A section of DNA has these bases: TAG CAG TAC. Which mRNA sequence is produced from this DNA sequence?
A
UTC GTC UTG
B
ATC GTC ATG
C
AUG CUG AUC
D
AUC GUC AUG
9) Which process can occur in both mitosis and meiosis?
A
fertilization
B
gene mutation
C
independent assortment
D
crossing over
10) How do some chemicals increase the risk of a person getting cancer?
A
by causing an increase of toxins in the skin
B
by causing a deficiency in vitamin D
C
by causing cell mutations
D
by causing a decrease in the immune response
*select an answer for all questions
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