Topic 3
What are different forms of a gene called?
Alleles
What does 85 great white sharks off Cape Code describe?
a population
Niche.
What is not a renewable resource?
Coal, fossil fuels, natural gas
What is a natural source of air pollution?
Volcanoes.
Both fern and cedar trees rely on _____ to successfully fertilize themselves.
wind
A straight series of connections among organisms that feed on each other is called a?
Food chain.
What type of interaction in which both species benefit?
Mutualism.
What is a renewable resource that comes from the ground?
Geothermal energy.
Automobiles contribute to air pollution by?
Increasing carbon dioxide.
Why is asexual reproduction different from sexual reproduction?
The offspring is identical to their parents.
What are mushrooms and bacteria example of?
Decomposers
What is the series of predictable changes that occur in a community over time called?
Fossil fuels are _________ resources that are ______ distributed on Earth.
Nonrenewable, unevenly
What is a source of human-made ocean pollution?
Fresh water.
What is not a stimulus that can trigger tropisms in plants?
Temperature.
What are rain, hail, and snow examples of?
Precipitation.
What is a species that influences the survival of many other species in an ecosystem called?
A Keystone species
What is the most abundant water resource on Earth?
Salt Water.
What can lead to desertification?
Reduced moisture.
What are mating systems?
Behavior patterns that are related to how animals reproduce.
What do consumers release as they break down food to obtain energy?
Carbon dioxide and water.
The water cycle, photosynthesis, nutrient cycling, and soil formation are examples of what type of service?
Supporting services
Most fresh water on Earth is ?
Locked up in ice.
What impact does logging have on the land?
Increased erosion.