The student is expected to compare the structures and functions of
different species that help them live and survive, such as hooves on
prairie animals or webbed feet in aquatic animals.
NOTE: As of Spring Break, we have not yet covered this objective in class. We will cover it in late March/early April.
NOTE: As of Spring Break, we have not yet covered this objective in class. We will cover it in late March/early April.
Scholastic StudyJams video:
Other Links to Check Out:
- Here's a great slideshow about behavioral and physical adaptations.
Structure and Function
With this unit, we are going to discuss structure and function. Structure is how something is made. Function is what it does.
Example: A human hand.
Structure: We have a thumb and four fingers that have joints and can move. Our hand is connected to our arm at the wrist, which can turn and move. We can also make a fist with our fingers.
Function: Our thumb and fingers help us grab things. Our wrist moves and enables us to wave or carry things easier.
Camouflage vs. Mimicry
In class, we talked about camouflage and mimicry. These are both adaptations that animals use to survive. However, sometimes it can be confusing to remember which is which. Let's review:
Camouflage is when an organism has colors or characteristics that help it blend it with its surroundings.
Mimicry is when an organism looks or sounds like another organism.
For example, this frog is camouflaged to blend in with its surroundings. This makes it harder for predators to find.
Remember that we talked about the snake-necked turtle in class. This animal has a big long neck that makes it look like a snake. This is an example of mimicry.
Vocabulary:
Species: A group of
organisms with similar characteristics that allow them to reproduce
Reproduction: The act of
making something new
Adaptation: A
characteristic that helps a plant or animal survive
Survive: Stay alive or stay
with
Niche: A role an organism
plays in its environment
Camouflage: Characteristics
that blend in with the surrounding environment that increase chances of
survival
Mimicry: The resemblance of
an organism to another organism or to its surroundings that gives it a better
chance of survival
Migration: The seasonal
movement of animals from one place to another
Hibernation: When an animal
becomes still in an enclosed space and reduces bodily functions to save energy
Predator: An animal that
hunts and feeds on another organism
Prey: An animal that is
hunted as food
Habitat: A place or
environment in which an organism naturally lives
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