Life Science Ch.2 Test

Which of the following is an inherited behavior? 

• A bird migrating 
• A nest building
• The beak of a bird
• The ability of a bird to fly 

Which of the following is an adaptation by a mammal to a very cold climate? 

• A layer of fat under the skin
• A layer of feathers on the skin
• The feeding of young with mother's milk
• Breathing through lungs

You find two sets of fossilized human footprints next to each other.  One set of footprints shows steps one-half meter apart.  The second set shows steps one-quarter meter apart.  What is the most likely explanation for your observations? 

• The footprints were made by two adults walking together
• The footprints were made by two children walking together 
• The footprints were made by two individuals of the same weight 
• The footprints were made by an adult and a child walking together 

A polar bear gets its white fur-

• from its surroundings 
• by accident
• from its parents 
• from rolling in the snow

Which best describes a million-year old footprint?

• trace fossil
• mold
• cast
• limb

Which best describes a fossil?

• An ancient rock
• An ancient animal
• The remains or trace of an ancient organism
• An old living thing 

How do animals get adaptations? 

• They learn from watching their parents
• They are born with them
• They get them when their environment changes
• They decide to get them when they need them 

Which animal is most likely to share an environment with a bear with white fur?

• A bear with brown fur
• A deer with red fur
• A rabbit with brown fur
• A fox with white fur 

Which of the following is an adaptation to life under water? 

• Lungs
• Gills
• Light bones
• Webbed feet

Which statement is true? 

• A gene carries an inherited trait
• A trait produces a gene
• A trait can only be learned
• Children pass inherited traits to their parents