Characteristics of Life

A _____ is something in the environment that causes an organism to respond.

• stimulus
• response
• cause
• effect

Which of these is not true about all organisms?

• all living things have many cells
• all living things need water
• all living things respond to stimuli
• all living things reproduce

What is another way of saying organism?

• living thing
• organ system
• tissue team
• critter

Which of these statements is true about plants?

• they are producers
• they need water and carbon dioxide
• they need sunlight
• all of these statements are true

Which of these statements is true about animals?

• they are consumers
• they need water and oxygen
• they need to eat other living things for food
• all of these statements are true

Most single-celled organisms...

• reproduce asexually
• reproduce sexually
• have complex tissues
• can be seen without a microscope

When a baby kitten becomes an adult cat, this is an example of...

• energy metabolism
• growth and development
• response to stimuli
• having cells

Your body shivers when you are cold. This is because of the concept of...

• homeostasis
• heredity
• energy metabolism
• cellular organization

Living things are made up of units called

• DNA

• Cells

• Homeostasis

• Seeds

If an organism is made entirely of one cell it is called...

• Multicellular

• Prokaryotic

• Unicellular

• Eukaryotic