7-1-6 Review Name__________________________ Pd_____

Describe what is happening in this compost pile. ____________________________________________

What is actually breaking down the material in the compost pile? ______________________

Bush Mouse SnakeUsing the food chain-

Name a predator/ prey relationship ______________________________________

If the Mouse population increases, what will happen to the snake?____________________

If the snakes increased, what would happen to the mouse? ____________________________

sodium

hydrogen

carbon

oxygen

What is an organic compound? _______________________

What element must be present in order to be organic? ____

What is the connection between organic compounds and decomposers? ____________________________________

Use the key to the left to draw an organic compound. Include at least 3 elements:

What do the arrows in the food web represent?______________________

Describes what is happening during decomposition and decay. What is involved in this process? ______________________________________________________________

Radiant energyWhat is the equation to the left describing? _____________________________

What uses this process? ____________________________________________

Where does the radiant energy come from? ____________________________

Why is the radiant energy important? __________________________________

What type of relationship exists between the rabbit and the fox? __________________________________

How can you tell? __________________________________

What happens to the rabbit population as the fox population decreases? __________________________________

Draw a line and label each part of the model with the correct term.

Population

Organism

Ecosystem

Community

Biosphere

Which term includes that largest number of organisms? ____________

The Smallest? ___________________

What organisms contain the most energy? _____ The least?________

Where do the producers receive energy from? ________

Which organisms provide energy for the primary consumers? ______________ for the secondary consumers? ________________ for the tertiary consumers? ________________

Draw a diagram of the plant undergoing photosynthesis:

What role do the bacteria play in the food web?____________________________________

Mice receive energy from _____________ Grasshoppers receive energy from ___________

Quail provide energy for the ____________ Grass provides energy for the _______________

How would the grasshoppers be affected if the opossum population increased? __________________________________________________________________________

How would the mice be affected if the weasel population decreased? __________________________________________________________________________

What organism has the biggest impact on all of the other organisms? ___________________

Complete the chart using the frog’s microhabitat:

Biotic Factors:

____________________________________________________________

Abiotic Factors:

____________________________________________________________

List factors that are essential to the frog’s habitat: ______________________________________________________________________________

Predict what would happen if grasses were removed from this habitat: ____________________________________________________

What would happen if the grasses increased? ______________________________________________________________________________

1a Leaves are needlelike go to 21b Leaves have flat blades go to 42a Needles attached singly go to 32b Needles attached in bunches White Pine 3a Needles on two sides of the stem Balsam Fir 3b Needles on all sides of the stem Red Spruce 4a Leaves are compound go to 54b Leaves are simple Silver Maple 5a 5-7 leaflets White Ash 5b 9 leaflets on each section Coffee Tree

Use the dichotomous key to identify leaves 1 and 2

1 2

________ _________

Match each Texas biome to it’s correct illustration.

a. West Texas Desert b. Texas prairie

c. Gulf of Mexico

What organisms will inhabit each ecosystem? _________________________________________________________________________________________________________________________________________________________________________________________________________________________

Label producers, primary consumers, secondary consumers, and decomposers

1 ___2 ____

3 ___