lemonllama651

Jenna found a mushroom growing at school. Which question can a dichotomous key help her answer?

◯ A. Why is this mushroom growing here?

◯ B. Which species of mushroom is this?

◯ C. Why do mushrooms grow after rainfall?

◯ D. Which species of mushroom is the prettiest?

A student creates a model of a closed ecosystem by filling a gas tank half fool with water, then adding 10 snails and two small aquatic plants. The next day, all the snails are dead. What is most likely the cause of their death?

How is usable nitrogen obtained by animals?

◯ A. They get it from the soil.

◯ B. They produce it in their chloroplasts.

◯ C. They get it by eating plants.

◯ D. They breathe it in from the air.

Cara took the photograph below of a butterfly. Which tool would be most helpful in identifying the butterfly?

◯ A. A butterfly net 

◯ B. A sketchbook

◯ C. A dichotomous key of plants 

◯ D. A field guide to butterflies 

Look at the photo of the leaf.  Which term best describes the leaf?

a. Lobed

b. Toothed

c. Parallel

d. Simple

Volume of a cube.