7th Grade review for Benchmark

Biotic factors are

• Living

• nonliving

Abiotic factors

• living

• nonliving

For what are the wildcat and the fox competing?

• Goat

• rabbit

• owl

• hawk

Which type of organism needs to eat other plants and animals to survive?

• producer

• consumer

• decomposer

Which of the following is a primary consumer?

• 
• 
• 
• 

After the creek flooded last year, Mrs. Fennell noticed their were less plants growing in it. Why?

• Too much sediment blocked out the sunlight needed for photosynthesis.

• Too many fish ate them.

• Plants can't grow in the water.

• There was less soil in the creek for leaf formation.

Mr. Leggett put chemicals in his fish tank that would interfere with the algae's ability to carry out photosynthesis. What is another possible consequence of this?

• The other plants in the tank would decrease as well.

• The other plants will increase in number because there is less algae using up the sunlight.

• The fish will grow larger than normal.

• The other plants will grow larger and develop shiny scales.

The Gulf of Mexico is full of sediment because of all the rivers that drain into it and make it so nutrient rich. If half of those rivers were dammed up, what would happen to the biodiversity of the area?

• It would decrease because there would be fewer nutrients.

• It would increase because the water would be clearer.

• It would stay the same because sediment is not a fish.

• Ask Mrs. Fennell

Which of the following water conditions would cause the most competition for resources among all three species of fish?

• Mild temperatures, some suspended particles, flows at a medium speed

• Very cold, very clear, and very fast

• Mild temperatures, some suspended particles, flows very fast

• Very warm, very clear, and very slow

An illustration and a dichotomous key are given. What is the correct classification for this organism?

• Class Insecta
• Order Amblygygi
• Order Araneae
• Order Scorpiones