Unit 1 + 2
What do limiting factors do?
a. Increases the amount of biotic factors in an ecosystem
b. Regulates how many organisms live in an ecosystem
c. Separates organisms by trophic levels
d. Determines the amount and kinds of producers in an ecosystem
b. Regulates how many organisms live in an ecosystem
Which of the following has the highest biodiversity?
a. mangrove
b. prairie
c. semi-arid desert
d. coral reefs
d. coral reef
Though tropical rainforest is the terrestrial ecosystem with the highest biodiversity, coral reefs also have a high biodiversity especially among the aquatic ecosystems.
Which of these words best describes the savanna?
a. rainy
b. forested
c. tropical
d. cold
c. tropical
Where are many autotrophs found in aquatic ecosystems?
In the photic zone
True or False:
The greenhouse effect is a natural event that occurs on Earth.
True - it's needed to keep temperatures on Earth warm enough
Enhanced greenhouse effect is unnatural and causes climate change
Name two things/factors that cause eutrophication
Use of excessive fertilizers
Animal waste
Sewage
True or False:
The Dust Bowl happened only due to natural causes
False
Human activity and irregular weather patterns caused the Dust Bowl
What are the 3 kinds of biodiversity?
genetic diversity
ecosystem diversity
species diversity
Which of the following choices puts the levels of organization in order from SMALLEST to LARGEST?
a. ecosystem, community, species, population, organism
b. community, organism, ecosystem, species, population
c. organism, population, species, community, ecosystem
d. species, population, community, organism, ecosystem
c. organism, population, species, community, ecosystem
Look at the food chain:
phytoplankton->salmon->herring->dolphin
Which of the following organisms would be least affected by biomagnification?
phytoplankton
Where can chaparrals be found in/by
a. Polar regions
b. Northeastern United States
c. Deciduous forests
d. Mediterranean coast
Mediterranean coast
An example of an invasive species is...
a. Salmon swimming to their reproductive sites to lay eggs
b. An ivy plant that grows naturally and spreads on the side of a house.
c. Geese migrating south for the winter for food.
d. Pet owners buying boa constrictors from South America and releasing them in the wild
d. Pet owners buying boa constrictors from South America and releasing them in the wild
Name at least 2 types of fossil fuels
coal
oil
gas
What is the name for the types of organisms that are large, independent swimmers?
Nekton
What type of irrigation used by farmers is the least effective?
Sprinkler irrigation
Because water goes on top of the plants instead of to the roots
What is the name of an area with endemic species and a large number of endangered and/or threatened species?
biodiversity hotspots
Name all 4 types of ecosystem services.
cultural services
provisional services
regulating services
supporting services
The separation of land into smaller parts is called ___________
Habitat fragmentation
____________ is the type of farming where a variety of crops are grown at the same time within the farm
polyculture farming
keystone species