Ch 1 - The Science of Biology

You observe that a plant in a window bends toward the light. The plant is exhibiting what characteristic of life?

• reproduction
• response
• photosynthesis
• metabolism

Spider plants will grow mini plants from their stems. These can be planted and will grow into a full plant. This is an example of:

• asexual reproduction
• sexual reproduction
• homeostasis
• spontaneous generation

Homeostasis refers to the body's ability to:

• change their behavior
• grow new cells
• produce more of their own kind
• maintain internal balance

A dog howls every time it hears the phone ring. The stimulus that triggers the behavior is:

• the howl
• the ring
• the brain
• the dog

A scientist working with wolves records the different sounds they make, such as howling. He proposes that wolves use these sounds to communicate with members of the pack. What CLAIM is the scientist making?

• wolves make different kinds of sounds

• wolves live in social groups
• wolves communicate using sounds
• wolves are related to dogs

The scientist sets up an experiment where he records the sounds of puppies whining. When he plays the sound, the mother comes to investigate. What is the manipulated (independent) variable in the experiment?

• the location of the pack
• the behavior of the wolf
• the sound of puppies whining
• the recording device

A hypothesis must always be:

• repeatable
• testable
• correct
• related to a theory

Science is considered to be a body of knowledge about the natural world. It begins with:

• observations
• experimentation
• scientific theories
• communication

Which of the following is an example of quantitative data?

• how much it weighs

• where it lives

• what color it is

• what it eats

An experiment measures the effect of fertilizer on plant growth. What is the dependent variable?

• type of fertilizer

• height of plant

• amount of water

• color of flower