Characteristics of living things
Levels of Organization
Scientific Method
Viruses
100

This characteristic allows organisms to produce offspring.

What is reproduction

100

This is the smallest building block of living and nonliving things.

What is an atom?

100

This is the very first step where you use your 5 senses to notice something about the world around you.

What is making an observation?

100

True or False: Viruses contain their own DNA

True

200

This characteristic of life explains the process of going from a baby to an adult

What is growth and development?

200

A group of similar cells working together is called this.

What is a tissue?

200

This is a testable explanation for an observation written as an "if...then" statement.

What is a hypothesis

200

True or False: Viruses are living

False

300

This characteristic of life involves taking in and using food or other substances for energy.

What is metabolism?

300

The heart is an example of an organ. Which level of organization is made up of several organs working together?

What is an organ system?

300

After scientists repeatedly test a hypothesis and gather a large amount of supporting evidence, a well-supported explanation may develop into this.

What is a theory?

300

Why don't viruses need food?

They don't have any metabolic activity
400

A person sweats when their body temperature becomes too high. This is an example of what characteristic of life?

What is homeostasis?

400

Put these in order from smallest to largest: organ, organism, tissue, cell, organ system.

Cell → Tissue → Organ → Organ System → Organism

400

Marcus is testing whether different amounts of fertilizer affect plant growth. He gives three groups of plants different amounts of fertilizer and measures their height every three days. Which step of the scientific method is Marcus completing when he records these measurements?

What is Collecting Data?

400

Viruses reproduce by:

a. Binary Fission

b. Taking over a host cell

c. Sexual Reproduction

B.  Taking over a host cell

500

A plant bends toward a window because it is responding to light. Which characteristic of life does this demonstrate?

Response to stimuli

500

A forest contains trees, deer, insects, bacteria, water, soil, and sunlight. Which level of organization includes all the living and nonliving parts of the forest?

What is an Ecosystem ?

500

A student observes that plants near a window are taller. He immediately decides, “Plants grow taller because they are near windows!” He never tests his idea.

Which step did he skip?

Experiment

500

How do viruses evolve?

Genetic mutation