Climate
Niches & Communities
Succession
Biomes
Aquatic Ecosystems
100

What is the difference between weather and climate?

Weather is day to day conditions of the atmosphere, while climate is average conditions over longer periods of time. 

100

What is the difference between intraspecific and interspecific competition?

Intraspecies is between members of the same species while interspecies is between organisms of different species. 

100

What is a pioneer species?

The first species to enter into a community following primary succession. 

100

What is the term for the graph used to show seasonal temperatures and precipitation of a climate?

Climate diagram. 

100

What is the difference between the photic and aphotic zone?

Photosynthesis can occur in photic but not in aphotic. 

200

What are the two things that determine a regions climate?

Chronic changes in temperature and precipitation. 

200

What is the type of symbiosis where one organism benefits and the other is neither benefited or harmed?

Commensalism.

200

What is a climax community?

A developed, stable community prior to a disturbance. 

200

Which biome is characterized by a layer of permanently frozen topsoil?

Tundra. 

200
What are the three categories of freshwater ecosystems?
Rivers/streams, ponds/lakes, freshwater wetlands. 
300

Which of the following climate zones receives the most direct sunlight year round: temperate, tropical, polar. 

Tropical. 

300

What is a keystone species?

A species that can cause extreme changes in a community. The example we talked about in class was sea otters. 
300

What causes instability in climax communities?

Chronic disturbances. 
300

Name a reason an organism may need to migrate away from their biome during the year? 

Need to look for water or move to warmer area during winter. 
300

How are estuaries different from freshwater wetlands?

Estuaries are where a river meets the ocean, leads to a mixing of salt and freshwater. 

400

What is the greenhouse effect?

Greenhouse gases such as carbon dioxide, methane, and water vapor allow visible light to enter but trap heat, such as in a greenhouse. 

400

What is the difference between an organism's habitat and it's niche? 

Habitat is the general place where it lives, niche is the physical and biological conditions in which the organism lives and how it gets what it needs to survive and reproduce. 

400

What is the difference between primary and secondary succession?

Primary succession means that the community is completely destroyed following a disturbance. In secondary, a small portion of the community remains. 

400

What biome is Dallas, TX?

Temperate grassland. 

400

Which of the three ocean zones contains both the a photic and aphotic zone?

The open ocean. 
500

Why do temperate and polar zones receive very different amounts of solar energy at different times of the year?

The curvature of the earth. 

500

What is the competitive exclusion principle? 

States that no two species can occupy the same exact niche in exactly the same habitat at the exact same time. 

500

Name an example of a human disturbance in a community. 

Logging or farming. 

500

How do organisms in deserts adapt to live in extreme temperatures?

Plants: store water in tissues, minimize leaf surface area, specialized photosynthesis

Animals: get their water through their food, are nocturnal, large ears

500

Why are estuaries considered extremely valuable?

They provide a spawning and nursery location for ecologically and commercially important species such as bluefish, striped bass, shrimp, and crabs.