11 EOC Review 1/5

This diagram shows DNA fingerprints for a child and four adults. Which adult is most likely a parent of the child?

• Adult 1

• Adult 2

• Adult 3

• Adult 4

An antibiotic which was effective 20 years ago against a specific type of bacterial infection no longer works against the same kind of infection today. Which best explains why the antibiotic is no longer as effective as it was 20 years ago?

• Bacteria resistant to the antibiotic have killed off nonresistant bacteria.

• Viruses have changed the structure of the bacteria that causes the infection.

• Resistant bacteria have survived and reproduced at a greater rate than nonresistant bacteria.

• The human body has developed an immunity to the antibiotics.

Salivary amylase is an enzyme in humans that breaks down starches. What substance would humans have difficulty digesting without this enzyme?

• lipids

• nucleic acids

• proteins

• carbohydrates

Which of these cells in the human body is specialized to transport oxygen throughout the body?

• 
• 
• 
• 

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

• A

• B

• C

• D

Which adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have?

• chloroplasts

• flowers

• stomata

• vascular tissue

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.

What determines the function of a specialized cell?

• the type of RNA in the cell

• the number of ribosomes in the cell

• the number of chromosomes in the cell

• the active genes in the cell

What carries the instructions for making amino acids in a protein?

• the nitrogen base on the tRNA

• the hydrogen bonding between nitrogen bases

• the sequence of nitrogen bases on the mRNA

• the nitrogen base bonding on the DNA molecule

In nature, which type of behavior causes animals to produce aggressive displays and sounds?

• imprinting

• territoriality

• conditioning

• habituation