Lesson 1
holes on the surface of a plant leaf through which gases pass
stomata
the predictable order of changes in communities after a change occurs
succession
useful changes in the body parts of an animal
structural adaptations
the process of an animal changing form during its life cycle
metamorphosis
a hard skeleton on the outside of the body
exoskeleton
a random change in a gene
mutation
Birds have different types of beaks for the types of food they eat. What type of adaptation is this?
structural adaptation
How many stages are there in complete metamorphosis?
4
air holes on the skin of an insect's body
spiracles
a characteristic that allows an organism to survive better in its environment
adaptation
behavioral adaptations or inherited behaviors that help animals survive
instincts
the process by which an animal sheds its outer covering
molt
Give two purposes of an exoskeleton
1) support the body and give it structure
2) protect the internal organs
When small mutations occur over many generations, its called______________.
Natural Selection
when a species has no members left that are alive
extinct species
a pattern of birth, growth, and death that all animals share
life cycle
name of the plants that have a circulatory system
vascular plants
Why might a coconut that floats a little better than the average coconut have a better chance of surviving?
It may travel father than other coconuts
Give an example of a behavioral adaptation.
Answers will vary
What are the stages of incomplete metamorphosis?
1) egg
2) nymph
3) adult
What is the advantage of seeds that can be spread over a wide area
What are some structural adaptations of adult frogs that help them survive in their environment? Explain how each adaptation helps the frogs. (At least three)
Long, strong back legs help frogs jump far, and their color helps them blend into the environment to help avoid predators. Webbed feet help them swim, and long tongues allow them to catch insects.
How does a sugar glider's body help it glide through the air?
There is extra skin that connects the animal's front and back legs. Therefore, when it spreads its legs and arms, it forms a 'parachute' with its body.
Compare the way frogs breathe when they are tadpoles with the way that frogs breathe when they are adults.
Frogs breathe differently when they are tadpoles than when they are adults. When frogs are tadpoles, they use gills to breathe. Gills help the tadpole get oxygen from the water. When they are adult frogs, they use their lungs to breathe.