Input: Answer this question:
Scientists use models that show the features of an atom. A scientist should use a model that
OPTIONS:
- was the first to be developed
- was most recently developed
- shows the arrangement most clearly
- shows the details needed for a specific purpose
Answer: shows the details needed for a specific purpose

*Question*: Compared to the amount of hereditary information in a human body cell, how much hereditary information is contained in a human sex cell? OPTIONS:
- one-quarter the amount
- one-half the amount
- the same amount
- twice the amount
*Answer*: one-half the amount

question:
A boy pulls a sweater off over his head. His hair is attracted to the sweater due to
OPTIONS:
- a magnetic force
- a heat transfer
- a chemical change
- an electrical charge

answer:
an electrical charge

[Q]: Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick?
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OPTIONS:
- contact with environmental sources
- contact with an infected animal
- contact with a contaminated object
- contact with an infected person
****
[A]: contact with an infected person

question below:
Which cell structure carries out a function for a cell that is similar to the function that bark carries out for a tree?
OPTIONS:
- cell wall
- nucleus
- chloroplast
- mitochondrion
answer below:
cell wall

Input: Answer this question:
Which statement describes animal embryos?
OPTIONS:
- display all the features of an adult
- represent the earliest stage of development
- have the same number of cells as a fertilized egg
- have half the number of chromosomes as an adult
Answer:
represent the earliest stage of development