Ecology Quiz 1

Which of the following is an example of a population within an ecosystem?

• the gray wolves in a forest

• the rocks in a rock collection

• the bushes and grasses in a park

• the cats and dogs in your neighborhood

All of the following are biotic factors in an ecosystem EXCEPT ____________.

• a fish because it can swim

• sunlight because it has never been alive

• sea grass because it makes its own food

• an alligator because it eats smaller animals

Which of the following is an abiotic factor?

• algae because it grows on rocks

• plants because they grow in soil

• water because it has never been alive

• a dead deer because bacteria feeds on it

All of the following are examples of a community EXCEPT

• cacti, lizards, and snakes in a desert

• polar bears, seals, and walruses in a polar region

• water, sunlight, fish, turtles, and ducks in a pond

• pine trees, rabbits, squirrels, and red foxes in a forest

Which of the following most accurately describes a producer?

• bees because they make honey

• herbivores because they eat plants

• an oak tree because it produces acorns

• lily pads because they produce their own food

Based on the food web, the herbivores provide energy for which consumers?

• mountain lion, insect - eating bird, snake, shrew, and hawk

• grasshopper, squirrel, rabbit, and deer

• shrub, tree, grass, fungi, and bacteria

• mountain lion, snake, insect- eating bird, and deer

As you move from level to level in an energy pyramid, energy availability _____________.

• increases

• decreases

• stays the same

• is destroyed

The tundra is an example of a _____________ because the land that it covers has similar climates and vegetation.

• biome

• ecosystem

• habitat

• environment

Mussels, sea urchins, and crabs are eaten by sea otters. Kelp is eaten by sea urchins and mussels. Mussels and small fish are eaten by crab. Which graphical representation would be used to display this information?

• food web

• food pyarmid

• energy pyramid

• food chain

What do the arrows in a food web represent?

• the level of organization within an ecosystem

• how much energy each organism receives

• the type of consumer the organism is

• who eats what or whom