Ecosystems Quiz 1 2015

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What is your email address? *

What is your FIRST name? *

What is your LAST name? *

What period do you have SCIENCE class? *

Which is the BEST example of a biotic factor using an abiotic factor? *

a deer drinking from a stream

a crow eating an insect

a hurricane damaging a sea turtle's nest

water evaporating from a pond

Which group of organisms contains a producer and a consumer? *

seaweed and sunflower

turtle and seaweed

worm and fungus

polar bear and seal

What might happen if a population of rabbits reaches the carrying capacity? *

the rabbit population will decrease

the abiotic factors will disappear

the limiting factors will double

the rabbit population will increase

Which BEST describes a population that might be found in a pond? *

all the lily pads floating on the surface of the pond

all animals, plants, bioindicators, and dissolved oxygen in the pond

all the frogs, insects, and lily pads that interact in the pond

all the birds that drink water from the pond and live near it

Which organism is the BEST example of an omnivore? *

octopus

deer

owl

pig

Which is the BEST example of an herbivore using a producer? *

a lion eating a rabbit

a bee drinking nectar from a flower

a vine growing around a tree trunk

a horse swatting a fly with its tail

Which statement is true about limiting factors? *

They include natural factors, but not human activities.

They keep a population at or below its carrying capacity.

They are always biotic and never abiotic.

They increase the size of a population.

Which group of words shows the levels of organization in an ecosystem from smallest to largest? *

ecosystem, community, population, organism

population, organism, community, ecosystem

organism, community, population, ecosystem

organism, population, community, ecosystem

A crab, tubeworm, bacteria, and clams are all members of the same ____. *

community

population

niche

species

A lake has a muddy bottom, which is home to different types of algae and other organisms. Many species of fish feed on the algae. Which would BEST describe an abiotic factor in this ecosystem? *

the number of species of fish

the color of the algae

the temperature of the water

the amount of food available to fish

Which statement is TRUE about population sizes in an ecosystem? *

They remain constant due to death and reproduction rates.

They grow until a maximum size is reached, and then remain constant.

They constantly increase and decrease due to limiting factors.

They grow exponentially as long as resources are available.

Which is the BEST example of commensalism? *

bacteria in your intestines

fungus on a dead insect

oxpecker bird on a rhinoceros

a bird building a nest in a tree

Which is not a type of symbiosis? *

mutualism

commensalism

parasitism

predation

What do herbivores and carnivores have in common? *

Both break down decayed organisms.

Both depend on other organisms for food.

Both are types of producers.

Both are types of prey for predators.

Which statement is TRUE about parasitism? *

The host is usually smaller than the parasite.

It is a form of predation.

The host is always damaged by the parasite.

The host is usually killed.

Misteltoe lives on a tree and feeds on it. The tree is harmed, but not immediately. Which word best describes this interaction? *

mutualism

commensalism

competition

parasitism

Which is the best example of predation? *

a cow eats grass

a tapeworm feeds off a gut

a crow eats a dead possum

a mosquito bites a human

Which is the best example of a host? *

a crocodile opens its mouth to a plover bird that cleans its teeth

an orchid flower grows beside a pine tree

a maggot crawls out of a piece of pork

a coyote in the wild has fleas in its fur

How is commensalism different from mutualism? *

In commensalism, one species benefits while the other species is unaffected. In mutualism, both species benefit.

In commensalism, neither species is harmed. In mutualism, one species is harmed.

In commensalism, one species is harmed while the other species benefits. In mutualism, both species benefit.

In commensalism, both species benefit. In mutualism, one species is harmed.

Which is an example of symbiosis? *

a mother bear taking care of a bear cub

a worm living in a cow's intestine

a chimp cleaning and grooming another chimp's head

a married couple who share the rent and housework

Use the "Ladybug and Red Mite Populations" graph. Red mites are a tiny insect. What word BEST describes the relationship between the ladybugs that feed on the red mites? *

commensalism

herbivory

parasitism

predation

Use the "Ladybug and Red Mite Populations" graph. According to the graph, on which date did the ladybug population begin to exceed the red mite population? *

June 6

June 10

June 14

June 20

A maribou stork uses its saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is available to some bees for food and egg-laying. Which word best describes the interaction between the bee and the maribou stork? *

predation

mutualism

parasitism

commensalism

Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Since the eyesight of both species are different, they each can identify threats the other animal would not readily see. Which word best describes this interaction? *

predation

commensalism

parasitism

mutualism

Which pair of organisms is most likely to have a predator/prey relationship? *

spider and fly

rhinoceros and oxpecker bird

dog and tapeworm

fungus and green algae

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