Question 1: A cleaning product claims it "kills 99.9% of germs and viruses." Explain the flaw in this statement.

Question 2: On the surface of the eye is a transparent, flexible covering called the cornea. This structure would best be classified as a...

organ
organelle
cell
tissue
organ system

Question 3: Your aquarium contains three goldfish, one turtle, some plants, and millions of bacteria and algae. All those organisms together form a(n):

Ecosystem
Community
Population
Biosphere

Question 4: Which of the following would a biologist study? Select all that apply.

How bacteria respond to antibiotic treatments.
How algae interact with various fish.
How to produce new varieties of corn plants.
How earthquakes can be better predicted.

Question 5: Proteins within muscles interact, causing the whole muscle to shorten (contract). Which is the emergent property?

interaction of the proteins
contraction of the muscle

Question 6: Aristotle's statement "The whole is much greater than the sum of its parts." Explains which of the following?

Interactions between biotic and abiotic components
Emergent Properties
Life uses energy and raw materials to grow
None of these

Question 7: Your thoughts arise from signals that zip around through a network of nerve cells in your brain. Which is the emergent property?

Your thoughts, and your ability to think.
Your nerve cells.
Your brain.

Question 8: Read the following statements. Which one is NOTan example of the characteristics of life?

Your body gives off heat after running up several flights of stairs.
Drinking water after perspiring while working in the garden on a hot day.
A single-celled organism dividing into two separate organisms.
A fertilized egg developing into a young chick.
All of the examples above demonstrate characteristics of life.
None of the examples above demonstrate characteristics of life.

Question 9: This level of organization is the defining level of biology. As far as we know, life is an emergent property that exists at this level. Below this level, no single entity is truly alive.

organism
population
molecule
cell

Question 10: Which is the correct order from smallest to largest?

Molecule < Cell < Tissue < Organ
Cell < Tissue < Molecule < Organ
Cell < Molecule < Tissue < Organ
Molecule < Tissue < Cell < Organ.