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Chapter 2 Scott Foresman textbook
definitions
24
Science
4th Grade
09/27/2010

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Cards

Term
Response
Definition
A behavior caused by a stimulus
Term
Instinct
Definition
A behavior that an animal is born with and does not need to learn
Term
Reflex
Definition
A simple automatic behavior
Term
Reptile
Definition
An animal with a backbone that has dry, scaly skin.
Term
Mammal
Definition
An animal with a backbone that usually has hair on its body and feeds milk to its young
Term
True or False:
All reptiles reproduce by laying eggs.
Definition
False
Term
True or False:
All reptiles reproduce by laying eggs.
Definition
False
Term
True or False:
All birds can fly.
Definition
False - the penguin and ostrich are birds that can't fly.
Term
True or False:
Sponges, jellyfish, and sea stars are alike because they are all types of fish.
Definition
False - they are all animals that do NOT have a backbone.
Term
True or False:
Spiders and insects have the same number of body parts.
Definition
False.
Spiders have 8 legs
Insects have 6 legs
Term
Amphibians
Definition
One of a large group of animals with a backbone that live part of their lives in water and part of their lives on land
Term
Gills
Definition
Organs for breathing found in fish and amphibians
Term
Stimulus
Definition
The cause of a behavior
Term
Backbone
Definition
The main bone, made up of small bones jointed together. Runs along the middle of the back of some animals
Term
Behavior
Definition
The way a living thing acts
Term
Molt
Definition
To shed an animals outer covering
Term
True or false:
Animals learn behaviors by listening to their parents
Definition
True
Term
True or False:
Baby animals inherit certain traits from their parents.
Definition
True
Term
True or False:
All mammals feed milk to their young.
Definition
True
Term
True or False:
Fish and amphibians are both cold-blooded.
Definition
True
Term
True or False:
Scientists divide animals into two groups based on whether or not an animal has a backbone.
Definition
True
Term
True or False:
Birds have hollow bones.
Definition
True
Term
Exoskeleton
Definition
a hard outer covering the supports and protects animals without a backbone
Term
animals are grouped into two large groups... They are...
Definition
animals with a backbone
animals without a backbone
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