biology 1
What is ecology
what is abiotic
all nonliving things in a certain area
what is the biology teachers name
Mrs. Loverian
how many species identified so far on earth
1.7 million
what is competition
if individuals are densely packed they will compete for resources like food, water, space, light
What is biodiversity
the variety of living things in an area
how happy are you in biology
not happy at all is the only correct answer when you sit next to max and mason moore
what is predation
the denser the population, the more predators move into the area and the quicker the predator breeds a larger population
populations will grow if (there's 4 of them)
2) death rates decrease
3) immigration increases
4) emigration decreases
how do you calculate growth rate
births+immigration-deaths-emigration
what is population density
the number of individuals per unit area
what is population ecology
the study of all individuals of a certain species in an area
what is ecosystem ecology
the study of an area and all the biotic and abiotic factors in it
what does biodiversity include
includes the variety of ecosystems, species, and even variety of genes within a species
what is growth rate
the percentage change of a specific variable within a specific time period
How likely are you to pass this test
Very likely because of this game
what is the value of biodiversity
it gives us:
food
industial products
meds
healthy, water, air, soil
what are factors that help squirrels
trees, leaves, feeders, diggable soil, water
important characteristics about a population (there's 3 of them)
1) geographic distribution
2) density
3) growth rate
what are examples of density-independent limiting factors
climate extremes like a drought or flood
what are some factors that could hurt squirrels
predators, bad weather, hunters, overpopultion, cars, deforestion,
what is the difference between logistic and exponential
exponential keeps going up while logistic starts strong but slows down or stops
what are 3 examples of density-dependent limiting factors
1) competition
2) predation
3) parasitism and disease
what is carrying capacity
the largest number of individuals a given environment can support
what are the 4 threats to biodiversity
1) habitat destruction
2) overharvesting
3) pollution
4) invasive species