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ANIMAL MOUTHPARTS
ANIMALS AND THE ENVIRONMENT
 Environmental conditions have shaped the evolution of every organism on
the planet. From the structure of a maple tree's cells, to the camouflage of
a praying mantis, to the wariness of a gazelle, countless physical and
behavioral traits have grown out of the interaction between organisms and
their environment. These traits, called adaptations, are the result of natural
selection, and they give an organism the ability to survive and reproduce in
a given set of conditions.
 Evolution - the process by which changes in plants and animals happen over
time
 Adaptation - a change in a plant or animal that makes it better able to live in a
particular place or situation
 Natural Selection - the process by which plants and animals that can adapt to
changes in their environment are able to survive and reproduce while those that
cannot adapt do not survive
FOOD AND THE ENVIRONMENT
 One component of the environment that has been particularly influential in
the evolutionary process is food. Over millions of years, the amount and
type of food available to a species has dramatically influenced both the
manner in which individuals of that species find food and the physical traits
that help them catch and eat their food most efficiently.
 As you view the following slides, consider the structure of the mouthparts
and predict the type of food it is adapted to eat.
WHAT DOES THIS ANIMAL EAT?
WHAT DOES THIS ANIMAL EAT?
WHAT DOES THIS ANIMAL EAT?
WHAT DOES THIS ANIMAL EAT?
WHAT DOES THIS ANIMAL EAT?
WHAT DOES THIS ANIMAL EAT?