PSSA PSSA Life Science 3

Question 1

What is the term for organisms that can only be seen with a microscope?

Accepted Answer

Microorganisms

Answer

Parasites

Answer

Pathogens

Answer

Protozoa

Question 2

What is biodiversity?

Accepted Answer

The variety of different species and ecosystems in an area

Answer

The study of living organisms

Answer

The process of classifying organisms into groups

Answer

The rate at which species evolve over time

Question 3

Which of the following is an example of a biotic factor in an ecosystem?

Accepted Answer

Bacteria

Answer

Temperature

Answer

Sunlight

Answer

Rainfall

Question 4

What type of cell division produces reproductive cells (sperm and eggs)?

Accepted Answer

Meiosis

Answer

Mitosis

Answer

Binary fission

Answer

Budding

Question 5

Which of the following correctly describes the relationship in a parasitism?

Accepted Answer

One organism benefits at the expense of the other

Answer

Both organisms benefit

Answer

One organism benefits and the other is unaffected

Answer

Both organisms are harmed

Question 6

What is the role of ribosomes in a cell?

Accepted Answer

To synthesize (build) proteins

Answer

To produce energy through respiration

Answer

To store genetic information

Answer

To transport materials throughout the cell