Share Characteristics of Life
Save to Folder
A virus can reproduce only inside a host cell. Is it considered living?
no
sometimes
yes
only in a lab
Seeds can remain dormant for years and then grow. Which characteristic of life explains this?
Response to stimuli
Growth
Reproduction
Metabolism
Robots can move, respond to commands, and perform tasks. Why are they not living?
They have no cells
They can’t move
They eat
They grow
An animal hibernates during winter to survive. Which characteristic of life does this demonstrate?
Adaptation
Growth
Homeostasis
Reproduction
A person sweats on a hot day. This is an example of:
Reproduction
Homeostasis
Adaptation
Energy use
A single-celled organism divides into two new cells. This process is:
Response to stimuli
Metabolism
Reproduction
Growth
Muscle cells work together to form:
An organism
An organ
A tissue
An organ system
Which sequence is NOT correct from smallest to largest?
Tissue → Cell → Organ → Organ system → Organism
Cell → Tissue → Organ → Organism
Cell → Tissue → Organ system → Organism
Cell → Tissue → Organ → Organ system → Organism
The human digestive system includes multiple organs. Which of these is NOT part of it?
Stomach
Esophagus
Heart
Small intestine
A plant moves its leaves toward light. Which two characteristics of life are demonstrated?
Growth and reproduction
Reproduction and adaptation
Adaptation and homeostasis
Response to stimuli and energy use
You observe a mushroom growing on a log. Which characteristic of life is most clearly shown?
Metabolism
Growth
Reproduction
Adaptation and homeostasis
Which is a better example of an organism: a virus or a bacterium? Why?
Bacterium, because it is smaller
Virus, because it evolves
Bacterium, because it can grow, reproduce, and use energy independently
Virus, because it reproduces only in a host
A heart is made of cells, which make up tissues, which make up the organ. What is the next level of organization?
Cell
Tissue
Organism
Organ system
You find a crystal in a cave. Which characteristic of life can it demonstrate?
Response to stimuli
None
Growth
Reproduction
Some bacteria can survive extreme temperatures. Which characteristic of life does this show?
Adaptation
Homeostasis
Growth
Reproduction
Why is energy use necessary for all living organisms?
To grow taller
To perform cellular processes
To be nonliving
To move only
