Biology EOC Released Exam (2019) - Part 4

Which graph best illustrates the growth of a population introduced into an environment with limited resources?

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NGSS.HS-LS2-1

Which will most likely result in a negative growth rate in the human population of a country?

• The death rate is higher than the birth rate.

• The birth rate is higher than the death rate.

• The country has improved economic conditions.

• The country has made improvements in sanitation.

Why are many farmers encouraged to plant different types of crops on the same land throughout the year?

• It prevents insects from destroying crops.

• It provides more food to other countries.

• It allows for more genetic variation in plants.

• It helps to preserve the quality of the soil.

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NGSS.MS-LS2-5

During translation, what does the tRNA deliver to the ribosomes?

• amino acids

• DNA

• mRNA

• proteins

Which will most likely cause an increase in the frequency of genetic mutations in humans?

• increased exposure to mold spores in the air

• increased exposure to the rising levels of atmospheric CO2

• increased exposure to bacteria in drinking water

• increased exposure to X-rays

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NGSS.HS-LS3-2

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Having freckles is dominant over not having freckles. If two individuals heterozygous for freckles have a child, what is the probability the child will have freckles?

• 0%

• 25%

• 50%

• 75%

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NGSS.HS-LS3-3

Identical twin girls are separated at birth and cared for by two different families. After twenty years, the twins have different heights and weights. What is most likely the cause of these differences?

• One twin had a genetic condition that prevented her from growing tall.

• The DNA of one twin was different from the DNA of the other twin.

• Each twin was provided a different diet and physical activities.

• The proteins made by one twin were different than the proteins made by the other twin.

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NGSS.HS-LS4-2

What is the function of a restriction enzyme?

• to control the movement of proteins into a cell

• to regulate blood sugar levels

• to produce hormones that regulate digestion

• to cut DNA at a specific nucleotide sequence

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NGSS.HS-LS3-2

Some marine worms and mollusks go through similar larval stages during development. Which can be inferred about their relationship?

• They share a common ancestor.

• They mate with each other.

• They compete for a habitat.

• They share the same food source.

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NGSS.HS-LS4-1

Which statement best describes natural selection?

• As the weather changes, organisms that are able to find shelter need less energy to live.

• Organisms that eat only plants need less food than organisms that eat animals.

• Organisms better adapted to their environment are more likely to reproduce and pass on their traits to their offspring.

• Small organisms are more likely to survive than larger organisms

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