Biology EOC Practice

Hair samples were gathered from five people. A single hair was selected randomly from one of the samples and was marked as an unknown sample. Gel electrophoresis was run from the DNA of each of the five samples. Which sample is from the person who is most closely related to the person who was selected for the unknown sample?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

Which change in DNA will cause a heritable germline mutation?

• The sugar phosphate backbone of DNA in bone cells breaks due to exposure to X-rays.

• Thymine dimers form in the DNA of a skin cell due to exposure to UV light.

• A DNA replication error occurs in a sperm-producing cell.

• An error occurs during transcription of the DNA in a liver cell.

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NGSS.HS-LS3-2

A student is investigating how substrate concentration affects the rate of an enzyme-catalyzed reaction. Which three variables should be kept constant in the setup of the student’s investigation?

• temperature of the reaction

• amount of enzyme

• amount of substrate

• pH of the reaction

Tupai is part of the Leeward Islands. For years, people were not

allowed on this island. Recently, it has been opened to tourists. How

will increased development and human interactions likely affect

succession on this island?

• Lichens will increase quickly, creating a climax community.

• Mature trees will decrease, creating a pioneer community.

• Biodiversity will decrease as the number of species decreases.

• More diverse species will move into the area as biodiversity increases.

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NGSS.HS-LS2-2

NGSS.HS-LS4-5

A cell model is shown. Students were instructed to review the types

and number of structures that are present in this cell model. Which three cell types could be represented by the model?

• human stem cell

• plant xylem cell

• bacterial cell

• sea urchin embryo cell

• mammalian white blood cell

Tags

NGSS.HS-LS1-2

Which claim about reproduction in dogs can best be supported using a valid argument?

• Offspring produced by sexual reproduction are genetically identical.

• Gametes from both dogs are needed to maintain the correct number of chromosomes in the offspring.

• Phenotypic variation will occur in the offspring as a result of mitosis in the gametes.

• Binary fission is required for sexual and asexual reproduction in dogs.

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NGSS.HS-LS3-2

NGSS.HS-LS3-1

Which change would lead to higher carbon dioxide levels in the atmosphere?

• an increase in photosynthesis

• a decrease in animal respiration

• an increase in the burning of fossil fuels

• a decrease in the destruction of forests

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NGSS.HS-LS2-5

NGSS.HS-ESS2-6

Which statement best explains how the green sea slug is able to produce its own food?

• The slug is able to convert the oxygen needed for cellular respiration into glucose in the chloroplasts.

• The slug is able to store the algae within its body and use the glucose produced by the algae for cellular respiration.

• The slug is able to use the chloroplasts to make glucose molecules that it then uses for cellular respiration.

• The slug is able to perform cellular respiration to provide the carbon dioxide needed for photosynthesis.

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

NGSS.HS-LS1-7

In the investigation of oxygen dynamics in E. chlorotica cultures,

gross photosynthesis is reported after seven months in culture, even

in the apparent absence of oxygen production.

Which statement provides the best reasoning to explain this

observation?

• Oxygen produced is used in respiration.

• Photosynthesis can occur without oxygen production.

• Plastids store oxygen for photosynthesis.

• Transfer of photosynthesis ability to mitochondria.

Tags

NGSS.HS-LS1-5

At which stage of the E. chlorotica life cycle is photosynthesis most likely to occur?

• Throughout the life cycle

• As a larva

• As a nonpigmented juvenile

• As a pigmented adult

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5