Biology EOC Practice Test

Front

What are the four main elements found in proteins?

Back

Carbon, hydrogen, oxygen, and nitrogen.

Front

What is the function of the lateral line system in fish?

Back

It detects movement, pressure, and vibration in the water.

Front

How do dry conditions affect bird beak depth in a population?

Back

Dry conditions favor birds with larger beak depths, increasing their proportion in the population.

Front

Why must DNA replication occur before mitosis?

Back

DNA replication produces identical copies of DNA, ensuring each daughter cell receives a complete set of genetic information during mitosis.

Front

What is the genotype of the offspring when an albino female deer (aa) breeds with a homozygous normal male (AA)?

Back

The genotype of the offspring will be Aa.

Front

Define 'genotype'.

Back

The genetic constitution of an individual, represented by alleles.

Front

Define 'phenotype'.

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is the role of proteins in biological systems?

Back

Proteins serve as enzymes, structural components, signaling molecules, and play roles in immune response.

Front

What is natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is the significance of DNA replication in cell division?

Back

It ensures that each daughter cell receives an identical set of chromosomes.