WorksheetsBMK 4 Review
Total questions: 47
Worksheet time: 52mins
All of the carbon in existence is continually recycled in the carbon cycle.
Using the food web which of the following is a tertiary consumer?
frog
bird
eagle
worm
Using the food web what would happen if the eagle became extinct?
The frog population would decrease.
The frog population would increase.
The butterfly population would increase.
The snake population would decrease.
If fish were poisoned which organism would be affected?
algae
phytoplankton
clams
octopus
What % of energy is passed from organism to organism?
100%
10%
5%
25%
The graph shows that
wolf population control the rabbit population
the rabbit population control the wolf population
the two populations do not affect each other
wolves do not hunt rabbits
Based on the data, one student concludes that a new predator was introduced into the area during this time period. Which of the following is a likely alternate explanation for the change in the mullet population?
What happened to the Hare population after the decrease in Lynx population in 1860?
The decrease of lynx led to an increase in the amount of hares.
The decrease of lynx led to a decrease in the hare population.
The hare population stayed the same.
How did the increased population of wolves in year 5 affect the deer population in year 6?
The increase in wolves led to a decrease in deer.
There was no effect because the data showed that the population stayed the same.
The increase in wolves led to an increase in deer.
What caused the population of deer to drop from year 1 to year 2?
The deer ate each other.
Producers became extinct.
A wild Elsasser appeared and killed them all!
A Limiting Factor regulates how many organisms live in an ecosystem OR regulates the Carrying Capacity.
True
False
Which of the following is NOT a Limiting Factor.
Territorial Space
Available Water
Amount of Bees
Temperature
Food Availability
According to the graph, what scenario best fits?
The Owl Population increased because there were more mice to eat.
The Mice population increased because Owl population decrease, so there were less owls hunting mice.
Why was the songbird population reduced by the presence of too many elk in Yellowstone?
Elk ate young trees, so birds had fewer places to nest.
Elk ate too many songbirds.
Wolves ate songbirds when no elk were available.
Yellowstone elk made hunting easier for foxes by
hunting with them.
eating the tall grasses that small mammals used to hide.
chasing the wolves out of the park.
eating only small trees.
The Red dotted line reperesents what?
Carrying Capacity
Average of population
What converts nitrogen gas into a usable form for plants and animals?
bacteria
rain
fungi
car exhaust
The process in which nitrogen circulates and is recycled is called
The nitrogen cycle
The carbon cycle
The water cycle
The phosphorus cycle
In the nitrogen cycle, what does label A in the diagram represent?
Gas
Clouds
Carbon dioxide in the atmosphere
Nitrogen in the atmosphere
What is the role of decomposing bacteria in the nitrogen cycle?
change Nitrogen gas into Nitrate
Return the nitrogen compounds to the soil
Turn nitrogen into water
Turn nitrate into nitrogen gas
What does the color green indicate on the map
There was a deficiency of nitrogen fertilizer in the soil
There was an excess of nitrogen fertilizer in the soil
There was exactly enough nitrogen fertilizer in the soil
No fertilizer was used
According to this diagram, plants use nitrogen to make _________________________
carbohydrates
cellulose
proteins
unsaturated fats
What hormone is released when blood glucose levels rise above normal?
insulin
glucagon
glycogen
leptin
What organ releases hormones that regulate blood glucose levels?
salivary glands
stomach
small intestine
pancreas
What causes type 1 diabetes?
lack of exercise
obesity
eating too much carbohydrates
autoimmune disease
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. This is an example of a:
Positive Feedback Loop
Negative Feedback Loop
Which of the following is NOT true about vaccines?
the only way to control the spread of viral diseases
made from live viruses
stimulate the body's immune response
With a vaccine, the body builds up an immunity to the germ/pathogen even though you've never actually had the germ/pathogen.
True
False
