Symbiosis
Limiting Factors
Biotic/Abiotic Factors
Carrying Capacity
Misc.
100
What is a symbiotic relationship?
A close relationship between one or more organisms.
100
There are two types of limiting factors- name them.
Density Dependent and Density Independent
100
What is the difference between biotic and abiotic factors?
Biotic- Living or ONCE living Abiotic - non-living and never has been living
100
What is carrying capacity?
The total number of individuals that an ecosystem can support.
100
Define population
A group of individuals of the same species occupying a particular geographic area.
200
Tapeworms are segmented flatworms that attach themselves to the insides of the intestines of animals such as cows, pigs, and humans. They get food by eating the host's partly digested food, depriving the host of nutrients. What type of symbiosis is being described?
Parasitism
200
Due to a large number of species invading the ecosystem, the red fox migrated to a similar nearby ecosystem to obtain food. Identify one type of limiting factor being described and whether it is dependent or independent.
Density independent - Behavior Density dependent - competition
200
Is a decaying carcass biotic or abiotic? Explain.
Biotic because it was once living.
200
What happens when a population nears carrying capacity?
Resources become limited
200
________ is known as the number of individuals within a certain space/area.
Population Density
300
Oxpeckers land on rhinos or zebras and eat ticks and other parasites that live on their skin. The oxpeckers get food and the zebra/rhino get pest control. Also, when there is danger, the oxpeckers fly upward and scream a warning. What type of symbiotic relationship is being described?
Mutualism
300
A new neighborhood was built around an existing pond. The owners of the neighborhood decided to add 30 new species to the pre-existing ecosystem. Identify 2 limiting factors that could affect the populations found in this ecosystem. Explain each.
Competition for food with new species Stress- due to lack of food and possibly space ETC.
300
An environment's biotic and abiotic factors interact to make a/an __________.
Ecosystem
300
Would a lake or a pond have a larger carrying capacity? Explain
The lake would have the larger carrying capacity because it has more available resources.
300
Daily DOUBLE!!!! How old was Mrs. Root when she had her daughter??
28
400
A mother lion hunts against another mother lion for a deer to supply food for its cubs. What type of symbiotic relationship is being described?
None- this is an example of competition
400
A population of fish living in a pond about 30 feet deep are accustomed to 40 degrees water. A severe drought occurred over the summer and now there is only 10 feet of water. How could this limit this specific population of fish?
Due to more sunlight and warmth, the fish population would most likely die out because they would not be able to adapt to the conditions.
400
Identify one characteristic of all biotic factors.
Needs oxygen, reproduces, growth/development, etc.
400
What would cause a carrying capacity to change?
If the amount of available space increased, more food resources moved into the area, regrowth/succession, etc.
400
A team of biologists studied a population of box turtles in an Ohio woodlot for a period of ten years. They determined birthrate to be 40 per year, death rate to be 30 per year, 3 move in (immigrate) per year and 8 leave (emigrate)per year. What is the population density after one year?
5 box turtles per woodlot
500
Imperial shrimp utilizes the sea cucumber for its locomotive purposes, hanging tight through waters filled with the shrimp's food source, only disembarking to have a bite, and then climbs aboard to further its travel to the next feeding ground. What type of symbiosis is being described? Explain
Commensalism - The shrimp gets a ride on the sea cucumber to find food while the sea cucumber is unaffected.
500
What is the true purpose of limiting factors?
To keep the ecosystem balanced/stabilized so that the ecosystem doesn't grow out of control.
500
List 7 abiotic factors
Water, temperature, soil, sunlight, wind, Oxygen, Rocks,
500
The carrying capacity of the deer population in an ecosystem is 25,000. In 2006, the population of deer was 45,000. Describe TWO possible solutions to fix this problem.
Increase/introduce hunting in the area. Introduce more predators. Etc.
500
Name and describe the two types of succession.
Primary Succession- Occurs in lifeless areas (due to volcanoes, etc.) Secondary Succession - Occurs in areas where communities have once lived (a forest destroyed by fire)
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