topic 3
different forms of a gene are called.....
alleles
true or false
mushrooms and bacteria are important predators
false
to reduce competition, the role of an organism in its habitat is called its
niche
what is directly involved in transforming the remains of organisms into fossil fuels
pressure
what is a natural source of air pollution
volcano
what is not a stimulus that can trigger tropisms
temperture
rail, hail, and snow are all examples of ......
precipitation
the series of predictable changes that occurs in a community over time
succession
fossil fuels are _____ resources
nonrenewable
as human population increases, the demand for nature resources _____
increases
what are mating systems
behavior patterns that are related to how animals reproduce
in one from of nitrogen fixation, the _____ energy of _____ splits
electrical; lightning
in which type of iteration do both species benefit
mutualism
fossil fuels are ______ disturbed on Earth
unevenly
what change can led to desertification
reduced moisture
cooperative behavior can increase/decrease an animal's chance of surviving to reproduce
increase
what do consumers release as they break down food to obtain
carbon dioxide and water
a former farmland that is now home to shrubs and small trees is undergoing
secondary succession
name 4 renewable resources
- wood
- sunlight
-water
-wind
what is a human made ocean pollination
fresh water
both ferns and ceder trees rely on _____ to successfully fertilize themselves
wind
name one biotic and one biotic factors you might find in a desert
biotic: cactus, lizard
abiotic: sand, rocks
the water cycle, photosynthesis, nutrients, and soil formations are examples of
supporting services
name 2 nonrenewable resources
natural gas, coal
what impact does logging have
increases erosion