Science Final Flashcards
All the different populations that live together in an area make up a
community
All of the organisms that live in a particular area, along with the non living environment is called
ecosystem
the lack if surface to attach to is an example of _______ acting as a ______ factor that stops barnacle poplation growth
space, limiting
_______ is the process of a gas changing back to a liquid and form cloud
condensation
what is an example of a organism that can be both 1st and 2nd level consumer
groise
Nitrogen that exists in the air is fixed by ______ in the root nodules
Bacteria
______ use nitrogen to make many complex compounds. WHen animals eat thenm, the nitrogen goes to them
Plants
Why is it necessary to add a nitrogen based fertilizer to the soil where there was a patch of grass
Because plants cannot use “free” nitrogen
what ways are plants involved in the oxygen and carbon cycles
photosynthesis, respiration, decompsition
what do lung worms and fly larvae have in common
They have different niches in the same habitat
what is the first species to populate a new land called
pioneer
_______ succession is a series of changes that allows new species to inhabit an area that already had a pioneer species
secondary
grass, trees and weeds are
producers
coyotes and vultures are
scavengers
According to what law is there a fixed amount of nitrogen on Earth
Law of Conservation of Mass
what are 2 examples of ways people increase the amount of carbon dioxide in the atmaosphere
driving a car to the store, and cuttign down tree in a forest
what is a relationship in shich one species benfits and the other species is neither helped nor harmed
commensalism
list 3 examples of ways prey adapt to survive
bright colors, camouflage, and night vision
what would most likely happen if farmlands that used ti be wetands stopped farming ad has water flow through again
populations of native wetland plants will recolonize
which ecosystem service matches with : recover from damage
regulatory services
which ecosystem service matches with: recreational services
cultural services
which ecosystem service matches with: water cycle and nutrients
supporting services
which ecosystem service matches with: natural services
provisional services
what is a similar interaction of fungi and algae that would happen in the real world
mutualism between fungi and ants
list three thing that describes secondary succession
occurs rapidly, natural disruption to ecosystem, soil present
what is the differance between the two kinds of ways of extinction can occur
Mass- quickly and kills many species background- occurs slowly
what are 3 ways that humans are negatively affecting the body
introducing invasive species, removing natural resources, Adding carbon to the atmosphere
Limiting factors cause the size of population to (stop decreasing/ stop increasing) or to ( increase/ decrease)
stop increasing, decrease
waste products are an example of
biotic factors
weather is an example of
abiotic factors
Pollutants are an example of
abiotic factors
what is the resistance if the voltage is 10V and the current is 0.5 A
20 ohms
when a switch is ( open/closed)_______ charges can flow through the circuit. When a switch is ( open/ Closed) ______ the circuit is broken
closed; open
T or F
even though energy is used to power devices, the energy is always conserved
true
the largest population that an area can support is called its
carrying capacity
Mushrooms and worms are
decomposers
Rabbit, birds, and mice are
consumers
T or F
Primary succession usually occurs more rapidly than secondary succession
false
list 2 examples of parasitism
deer and nasal bot fly, and deer and lung worm
T or F
the longleaf ping tree is typically destroyed by wildfires which is why there are so few left in the south
False
T or F
According to fossil evidence, fifty percent of all organisms that have ever lived on Earth are now extinct
False
what are som direct value resources
crops and raw materials
t or f
if the voltage in a circuit increases and has fixed resistance, the current increases with the voltage
true
whwhat law states that resistance in a circiut is equal to voltage divided by current
Ohms Law
what is the difference in electrical potential energy per charge cetween two points in a circuit
Voltage
what is not an example of higher resistance
good conductor
Which of the following factors is resistance not dependent on
Mass
the current flows due to a difference in potential energy called _______. The light bulb is a ______ which slows it down
voltage: resistors
T or F
Electric current goes in the same direction of the flow of electrons
False
_____ is a relationship in which one species benefits and the other species is neither helped nor harmed
commensalism
____ is a relationship in which bother species benefit
mutualism
_______ is a relationship in which one species benefits and the other is harmed
parastism
what could be could a trigger to primary succession
volcanic eruptions
T or F ecosystems services are often produced without help from humans and they are free.
true
list 3 ways humans protect and restore the ecosystem
through\ ecological restoration, through conservation, and by working toward sustainablility to maintain diversity
