PSSA PSSA Life Science

Question 1

What is the basic unit of all living things?

Accepted Answer

Cell

Answer

Tissue

Answer

Organ

Answer

Molecule

Question 2

Which organelle is known as the 'powerhouse of the cell'?

Accepted Answer

Mitochondria

Answer

Nucleus

Answer

Ribosome

Answer

Vacuole

Question 3

What is the process by which cells divide to produce two identical daughter cells?

Accepted Answer

Mitosis

Answer

Meiosis

Answer

Fertilization

Answer

Diffusion

Question 4

Which of the following is an example of a producer in an ecosystem?

Accepted Answer

Oak tree

Answer

Deer

Answer

Wolf

Answer

Mushroom

Question 5

What does DNA stand for?

Accepted Answer

Deoxyribonucleic acid

Answer

Dioxyribonuclear acid

Answer

Deoxyribose nucleotide array

Answer

Dual nitrogen acid

Question 6

Which type of organism breaks down dead organic matter and recycles nutrients?

Accepted Answer

Decomposers

Answer

Producers

Answer

Primary consumers

Answer

Apex predators