Practice

X Explain why food webs are more realistic than food chains. Multiple paths X

Explain why producers are always found at the base of a food web. Don’t eat

Chemosynthetic bacteria Differentiate between the 3 producers below. Plant Chemosynthetic bacteria Phytoplankton

Upper layers of the ocean State where each producer is found. Land Upper layers of the ocean Hydrothermal vent

State which process each producer uses to obtain energy. Photosynthesis Photosynthesis Chemosynthesis

Unlike producers, rely on other organisms for energy. consumers

In this food chain, the frog is the consumer. secondary

The tertiary consumer is the . python

The grasshopper is the consumer. primary

The eagle is the consumer. quaternary

The grass is the . producer

List the primary consumers in this food web (4). rat grasshopper butterfly fruit fly

List the secondary consumers in this food web (7). python rat frog dragonfly thrush wolf eagle

In this food chain, the wolf is the consumer. quaternary

In this food chain, the wolf is the consumer. tertiary

The frog is a type of consumer known as a . carnivore

Explain WHY the frog is considered a carnivore. ONLY eats other consumers

The butterfly is a type of consumer known as an . herbivore

Explain WHY the butterfly is considered an herbivore. ONLY eats producers

Identify the omnivore in this food web. rat

List the organisms that would be affected if all the mangoes disappeared. Fruit fly X

If dragonflies and thrushes were eliminated, the number of fruit flies would . X X increase

If dragonflies and thrushes were eliminated, the number of mangoes would . X X decrease

The type of consumer found at the top of a food chain is usually a The type of consumer found at the top of a food chain is usually a (such as fungi). decomposer

Explain why there are no trophic levels beyond the decomposer. No energy left to pass on Used up Lost as heat

Producer, herbivore, carnivore, omnivore, or decomposer? (plant)

Producer, herbivore, carnivore, omnivore, or decomposer? (chemosynthetic bacteria)

Producer, herbivore, carnivore, omnivore, or decomposer?

Producer, herbivore, carnivore, omnivore, or decomposer?

Producer, herbivore, carnivore, omnivore, or decomposer? (zooplankton)

Producer, herbivore, carnivore, omnivore, or decomposer?

Producer, herbivore, carnivore, omnivore, or decomposer?

Producer, herbivore, carnivore, omnivore, or decomposer? (Phytoplankton)

Producer, herbivore, carnivore, omnivore, or decomposer? Giant tube worms

Producer, herbivore, carnivore, omnivore, or decomposer?