Why Do Organisms Look the Way They Look

Under the microscope, a student had a slide with two organisms, labeled Organism A and Organism B. The student recorded the characteristics of both organisms in the table below. Which of the following is a possibility based on the information collected in the table?

• Organism A is multicellular

• Organism B is multicellular

• Organism B is unicellular

• Organism B could be a species of bacteria

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NGSS.MS-LS1-1

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Under the microscope, a student had a slide with two organisms, labeled Organism A and Organism B. The student recorded the characteristics of both organisms in the table below.

Which of the following is a possibility based on the information collected in the table?

• Organism A is multicellular

• Organism B is multicellular

• Organism B is unicellular

• Organism B could be a species of bacteria

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

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Why do organisms have different physical traits?

• Genetic variation

• Environmental factors

• Both genetic variation and environmental factors

• Random chance

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NGSS.HS-LS3-2

NGSS.HS-LS3-1

What is the primary molecule responsible for inheritance in organisms?

• RNA

• DNA

• Proteins

• Lipids

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NGSS.HS-LS3-2

NGSS.HS-LS3-1

Which process explains the diversity of traits in a population?

• Natural selection

• Genetic drift

• Mutation

• All of the above

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NGSS.HS-LS3-2

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What is the role of DNA in determining an organism's appearance?

• It codes for proteins that affect traits

• It provides energy for cellular processes

• It acts as a structural component of cells

• It transports nutrients

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NGSS.HS-LS3-2

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NGSS.HS-LS1-1

How do environmental factors influence an organism's traits?

• By altering genetic sequences

• By affecting gene expression

• By changing the organism's DNA

• By providing new genetic material

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NGSS.MS-LS1-5

Which experiment demonstrated that DNA is the genetic material?

• Hershey-Chase experiment

• Mendel's pea plant experiment

• Watson and Crick's model

• Darwin's finches study

What is the significance of Mendel's laws in genetics?

• They explain how traits are inherited

• They describe the structure of DNA

• They show how mutations occur

• They detail the process of natural selection

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1