Ecology review 10/14

in the tropical rainforest the dense covering formed by the leafy tops of trees is known as

• canopy

• boreal

• niche

• understory

what is a population?

• a group of organisms so similar to one another that they can breed and produce fertile offspring

• groups of individuals that belong to the same species and live in the same area

• an assemblage of different population that live together in a defined area

• a collection of all organisms that live in a particular place

producers that can use inorganic molecules to produce energy are known as

• chemotrophs

• heterotrophs

• phototrophs

• herbotrophs

energy flows through the ecosystem in a cycle

• True

• False

nutrients move through an ecosystem in biogeochemical cycles EXCEPT

• water

• energy

• carbon

• phosphorus

Too much agricultural runoff can result in which of the following?

• thriving ocean habitats

• slowing of coral bleaching

• increased fish populations

• algae blooms

each step in the food chain or web is called a

• succesion

• pyramid step

• a trophic level

• a microecosystem

what is the proportion of energy that is transferred from one trophic level to another?

• 7

• 10

• 45

• 90

• 75

a nutrient that is scarce or cycles slowly is referred to as

• a limitting nutrient

• an abiotic factor

• a fundamental nutrient

• a primary nutrient

Tags

NGSS.MS-LS2-3

the three main climate zones are a result of all EXCEPT

• the latitude

• the tilt of Earth's axis

• the wind currents

• direct or indirect angle in which the sun hits the Earth