Describe how glaciers affect the earth's air temperature
glaciers reflect the light to cool down the earth
What stage of logistic growth is the human population currently in?
exponential growth
What is the difference between an autotroph and a hetrotroph?
what is the climate like in the tundra biome?
extremely cold, not much vegetation
how does the greenhouse effect affect glaciers? How does this affect temperature
What is the greenhouse effect?
molecules of greenhouse gases trap the sun's heat on earth heating up the planet
What is the difference immigration and emigration?
immigration is organisms moving into an area, emigration is organisms leaving an area
What are the two ways autotrophs make energy?
photosynthesis, chemosynthesis
Name 3 animals that live in the savannah.
lions, zebras, buffalo
How does deforestation affect the rainforest ecosystem?
destroying habitats of animals
Describe how the population of rabbits might be affected by limited food over the next generations
population would decrease then increase over and over again
something that stops a population from growing
What is the difference between a food chain and food web?
Food web is multiple food chains put together.
What is an adaptation animals have in the desert?
Ability to camouflage and retain water.
How does overfishing affect the ocean ecosystem?
when fish die, no animals have things to eat
what happens to an ecosystem when a species has no limiting factors?
they take over the ecosystem and their population grows forever
What is the difference between a density-dependent and density-independent limiting factor?
Density-dependent depends on the population size, density-independent does not depend on the population size
Describe the difference between abiotic and biotic factors
abiotic are nonliving, biotic are living
Name one example of how plants adapt to survive.
thorns, long roots
How do carbon emissions cause global warming
heat is trapped by the carbon molecules heating the earth
List 3 limiting factors for humans
food, water, space, disease, natural disasters,
Describe the three phases of logistic growth.
exponential growth, growth slows, growth stops
Describe how energy moves through a food chain and what biotic and abiotic factors are included
sun, autotroph, heterotroph
What are the key differences between each biome?
Temperature, water, sunlight
Why is global warming a difficult issue to solve?
we have not found alternatives to sustain daily life yet and a lot of people do not care