Ecology Test Review

Competition occurs when

• niches overlap and population numbers are high

• all population in an ecosystem occupy different niches

• resources are abundant and population density is low

• the habitat is large, and populations are spread out

Tapeworms are organisms that live inside the intestines of animals like pigs and take nutrients away from the pigs. In this relationship, what does the tapeworm represent?

• the tapeworm is prey

• the tapeworm is a parasite

• the tapeworm is a consumer

• te tapeworm is a producer

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Barnacles attach themselves to the whale and derive a benefit, however there is no benefit or harm to the whale. What type of relationship is this?

• parasitism

• competition

• commensalism

• predator-prey

Tags

NGSS.MS-LS2-2

Which of the following describes predation in a relationship in a freshwater environment?

• dragonflies capture and eat mosquito larvae in a river

• algae in a lake makes its own food from sunlight

• male fish in a pond fight each other for females

• sharks consume smaller fish they catch in the ocean

Tags

NGSS.MS-LS2-2

Mycorrhizae is a fungus living on the roots of orchids. Which of the following observations would be consistent with the claim that this relationship is mutualism?

• the orchid plan grows healthier and the fungus gains nutrients from the root of the orchid

• the fungus grows rapidly on the root system of the orchid plant and finally kills it

• the orchid plant is unable to stop the fungus from spreading throughout its root system

• the fungus draws many nutrients from the orchid plant and finally grows larger than the orchid

Tags

NGSS.MS-LS2-2

which type of relationship occurs when multiple organisms seek the same resources

• predation

• competition

• parasitism

• commensalism

A species is newly introduced into Japan from France. The insect becomes established, laying its eggs on the leaves of oak trees. How can a biologist distinguish if the relationship between the insect and the oak tree is commensalism, mutualism, or parasitism?

• if the insect benefits and the tree neither benefits nor is harmed, the relationship is mutualism

• if the insect benefits, the relationship is parasitism

• if the insect benefits and the tree neither benefits nor is harmed, the relationship is commensalism

• if both the insect and the tree benefit, the relationship is commensalism

Tags

NGSS.MS-LS2-2

when a jellyfish paralyzes a tiny fish with its poisonous tentacles in order to eat it, the fish is a

• parasite

• host

• prey

• predator

which of the following describes an interaction between a biotic factor and an abiotic factor

• a black bear uses a cave for a winter home

• a squirrel gathers nuts to store for winter

• a vulture eats the remains of a wild pig

• a pair of birds living in a tree

Tags

NGSS.MS-LS2-3

which of the following describes a change to an abiotic factor that could harm a squirrel's habitat

• deforestation leading to reduced nesting sites in trees

• increase in the population of local predators

• increase in the population of food plants

• drought that depletes available water