Structures and Functions
Fill in the blank
Hooves, webbed feet, legs, and wings help organisms ___________.
move
1973
Fill in the blank
All energy in a food chain comes from the __________.
Sun
True or false
All living things have a life cycle
True
True or False
Ecosystems are a community of living and nonliving things interacting with each other.
True
What structure helps beavers cut wood and plants for food and shelter?
their teeth
How many bird species live or visit Mitchell lake?
over 300
Fill in the blank
Where the arrow goes, ______________________
True or false
Plants DO NOT have a life cycle
False
Name three resources that we can get from ecosystems
any three are correct
air - wind - water - soil - plants - sun
Fill in the blank
Noses, mouths, lungs, and gills help organisms __________.
breathe
What is the effect for bird population when their habitat is destroyed by sludge?
Acceptable answers
Birds migrate; Birds will population decreases
What would happen to the plant population if cows were removed from the ecosystem?
The plant population would increase
What is the stage where an insects eats a lot to prepare for the pupa stage?
Larva
What do birds do when temperatures in their ecosystem get colder?
they migrate
Fill in the blank
Cactus have spines similar to a porcupine's quills for ________________.
protection
In 1950, what did the Audubon Society starts to do at Mitchell Lake?
Counting birds
What are the organisms that break down decaying matter and return it back to the Earth?
Decomposers
How can humans increase the levels of oxygen in the air?
Acceptable answers
Human can grow more plants; plant more trees
What is it called when there is little to no rainfall in an ecosystem?
drought
Fill in the blank
Ducks use their webbed feet to ____________ in water.
swim
In what city is Mitchell Lake located?
San Antonio
What is the role of the organisms that hunts other organisms for food?
Acceptable answers
predators
secondary consumers
tertiary consumers
egg and adult
What happens when plants undergo dormancy during the winter?
Plants use less energy; the pause (stop) their growing