Succession
What explains why secondary succession generally occurs more rapidly in an area than does primary succession?
Soil formation has already occurred.
True/False: Trees cannot take root in tundra biomes because of the existence of animals.
False
What is a climax community?
stable community with little change in species numbers
The first organisms to appear during ecological succession are called ____.
pioneer species
True/False: The difference between Weather and climate is: Weather is the atmospheric conditions such as temperature and precipitation at a specific time and place, and climate is the average weather of a location.
True
What are two features of coral reefs?
A. exist in abyssal zone and lack polyps
B. exist in benthic zone and kill off other sea life
C. prevent shore erosion and live symbiotically with algae
D. cause shore erosion and act as a parasite to algae
C.
Establishment of a community in an area of bare rock or bare sand, where no topsoil is present
What is primary succession?
Which is a characteristic of a savanna?
A. layer of frozen soil
B. areas of thick forests
C. sand and rocky terrain
D. grasses with trees intermixed
D.
Which explains why few animal species live in a fast-flowing river?
A. Few animals are adapted to withstand high-speed water.
B.Cold water lowers dissolved oxygen levels.
C. Currents prevent accumulation of most organic matter.
D. Frothing water reflects sunlight away from autotrophs.
C.
Orderly change that occurs in a place where soil remains after a community of organisms has been removed
What is secondary succession?
Which defines a biome as a desert?
rate of evaporation higher than precipitation
What would an ecologist use latitude to describe?
A. the distance of a point from the Earth's equator
B. the distance of a point from the Earth's north pole
A.
What is ecological succession?
process by which one community replaces another community because of changing abiotic and biotic factors
Conifer trees dominate boreal forests rather than tundra because of __.
a lack of permanently frozen soil
Mario and several friends spend a day at the beach. While watching the ocean waves crashing to shore, Mario wonders how much of the world’s water is contained in different types of bodies of water such as oceans, lakes, and rivers. He decides to research the percentage of Earth’s water found in different locations. Which does his research reveal?
A. The ice caps located at both poles contain 30 percent of Earth’s water.
B. Less than 3 percent of Earth’s water is freshwater containing no salt.
B.