WorksheetsBiosphere (Env. Sci)
Total questions: 35
Worksheet time: 21mins
If the gene pool of two populations are separated, the populations may develop into a new species. This is called:
natural selection
speciation
genetic separation
interspecific competition
The Kaibab squirrel became its own species when a small population was isolated on the northern rim of the Grand Canyon. Which type of speciation is this?
behavioral isolation
mechanical isolation
temporal isolation
geographic isolation
An ecologist is discussing two animals’ ability to reproduce with one another. Which is he talking about?
natality
fecundity
fertility
mortality
Rain carries soil into a nearby pond. This is an interaction between which two “spheres” of the earth?
Hydrosphere & Atmosphere
Atmosphere & Biosphere
Geosphere & Hydrosphere
Atmosphere & Geosphere
The unique role a species plays in its environment is its (a) .
Many species together in one place are called ______________________.
a niche
a community
a population
mutualism
Which level of an energy pyramid is most likely to have the highest number of organisms?
Producers
Primary consumers
Secondary consumers
Tertiary consumers
Two types of organisms consume dead and decaying matter. The difference between these two types of organisms is that ______________ are consumers that feed on dead animals, while ______________ break down plants and animals into simpler molecules.
decomposers; producers
scavengers; decomposers
producers; decomposers
decomposers; scavengers
A coral snake is venomous while its mimic, the scarlet king snake, is not. This is an example of _________________.
mullerian mimicry
chemical mimicry
malthusian mimicry
batesian mimicry
A tiny filter-feeding barnacle sticks to a whale. The whale is unaffected by this new stowaway. What type of relationship is this?
mutualism
commensalism
amensalism
neutralism
Which sphere of the earth is named using the Greek root meaning “ground”?
Hydrosphere
Atmosphere
Biosphere
Geosphere
Which of these is not an example of an abiotic factor?
soil
temperature
bacteria
rainfall
Which kind of niche takes competition between organisms into account?
Realized
Fundamental
How much chemical energy is transferred from one trophic level to another in a food chain? Write it in percentage.
(a)
Organisms that eat both plants and meat are called ______________.
omnivores
herbivores
autotrophs
carnivores
Which is not true about food webs?
Food webs show the transfer of energy among organisms
Food webs are more accurate than food chains
Food webs are simpler than food chains
Food webs contain decomposers and scavengers throughout
Which is NOT true about animal species?
animals of the same species can interbreed and reproduce
endangered species are in immediate jeopardy of extinction
individual species are well documented on a central registry
some species have been protected through trade restrictions
Which type of strategists would you expect to have low levels of prenatal care and a short life expectancy?
K Strategists
R Strategists
Long life expectancy usually correlates with all the following, except:
high levels of prenatal care
larger animals
type 1 & 2 survivorship curve
rapid reproduction
What causes a J curve to flatten into an S curve?
exponential growth is beginning
the death equals the birth rate
logistic growth is beginning
limiting factors affecting the population
Draw an exponential growth curve line (no need for a graph).
Draw an logistic growth curve line (no need for a graph).
A biome is cold, treeless and permanently frozen. Which type of biome is it?
Tundra
Taiga
Alpine
Chaparral
Which of the following is an example of climate?
There is a cold front coming in this weekend
A snowstorm is forecasted to hit the northeast US this week
It is usually hot in Texas in July
It rained 4 inches last week in Seattle, WA
Sea otters feed on sea urchins and help maintain their marine ecosystems by preventing sea urchins from overfeeding on kelp. Sea otters are an example of a(n)
keystone species
indicator species
pioneer species
secondary species
Because frogs absorb both oxygen and toxins through their skin, they are very sensitive to air and water quality. This makes them an excellent
keystone species
indicator species
pioneer species
primary species
Which of the following is not true about mangrove trees?
their leaves excrete excess salt from brackish (mixture of salt and fresh) water
their large roots cause erosion
their roots provide shelter for fish and shark species
mangroves trees are threatened by tourism and shrimp farming
Which of the following is not an example of secondary succession?
Vegetation growing after a hurricane has destroyed a patch of land
Trees regrowing after deforestation
The recolonization of an area that has been burned by forest fire
The growth of lichens on a newly created volcanic island
Which would you expect to be a characteristic of pioneer species?
Quick reproduction
Need high levels of nutrients to grow
Grow tall with deep roots
Produce large seeds and showy flowers
A small measured area in a forest has 10 individuals present. Each of these individuals is a different species. Which is true about the biodiversity index of this area?
The biodiversity index is 0.1
The biodiversity index is low
The biodiversity index would be higher if there were fewer species among the individuals
The biodiversity index is 1
An organism has been introduced into a thriving ecosystem and it reproduces quickly because a predator does not recognize it as prey. The organism is most likely a(n):
Transect species
Invasive species
Pioneer species
Primary species
Which would you expect to find along a line transect?
The edges of an area being researched
A division between habitats
A sampling of organisms found in an area
The total number of organisms in an area
What two measurements are found on a climatogram?
(a)
When drawing a food web, arrows represent
which prey is being eaten by a specific predator.
the flow of energy from one organism to another.
the trophic level of a certain species.
the habitat in which an organism lives.
Mr. Crumley is the ______ summer school teacher at Bonita High.
most legit
funniest
craziest
most understanding
