topic 3
How is asexual reproduction different from sexual reproduction.
the offspring in sexual reproduction are identical to the parent.
what factor is most similar to birth rate
immigration
to reduce competition, the role of an organism in its habitat is
niche
fossil fuels are ________ resources that are ________ distributed on the earth
nonrenewable, inevenly
for the global population growth rate to reach zero, the number of births would have to be
equal to the number of deaths
different forms of gene
alleles
name two biotic and two abiotic factors in an desert
biotic- cactus, lizard
abiotic- sand, rocks
which type of interaction do both species benefit
mutualism
What renewable energy resource comes from the ground
geothermal energy
automobiles contribute to air pollution by
increasing carbon dioxide
how is the number of offspring produced by an animal related to the amount of time and energy it invests in caring for its young
in animals that spend a great deal of time and energy caring for their young will produce fewer offspring than animals that do not care for there young.
rain, hail, snow are examples of
precipitation
the water cycle, photosynthesis, nutrients and soil formation are examples of
supporting services
what is an essential characteristic of a mineral
crystal structure
what impact does logging have on the land
increased erosion
how does environmental conditions affect the growth of an animals
if an animal does not receive enough food it will not grow to its normal size.
how is carbon cycled between organisms and the environment
decomposes breakdown the remains of dead organisms some carbon is released into the air and some into the air as co2. Living organisms give off carbon ad carbon dioxide and producers use it in photosynthesis, consumers eat plants containing carbon.
why is it in the best interest of a parasite not to kill its host
a parasite needs a host to survive, so its putting its life on the line
how could groundwater sources become depleted if water is constantly being cycled
i humans use it faster than it is being cycled
What is a source of human made ocean pollution
fresh water
what does an energy pyramid show
the energy available beginning with producers.
a distruption to an established ecosystem can lead to
changes in the population of the community
factors such as precipitation, _________ , and surface features determine where surface water can form on earth
temperature
as human populations increase, there is a higher demand for _______ the use of land to produce food
agriculture