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Biology worksheet. i have the definition, but now i need 2 examples and 2 nonexamples of each word.
examples would be like, for abiotic factor: air currents, soil and nonexamples: bacteria, plants
~Ecology
~biosphere
~Population
~biological community
~ecosystem
~habitat
~niche
~symbiosis
~commensalism
~mutualism
~parasitism
~autotroph
~heterotroph
~decomposer
~food chain
~tropic level
~food web
~biomass
any help would be greatly appreciated 😀

1. Which of the following are biotic factors and which are abiotic factors? (1 point)
Rain and grass are biotic; wind and humidity are abiotic.
Algae and fungi are biotic; temperature and rainfall are abiotic.
Oxygen and sunlight are biotic; maple trees and spiders are abiotic.
Fish and whales are biotic; plankton and bacteria are abiotic.
2. Why is it useful for an ecologist to identify the keystone species in an ecosystem? (1 point)
The keystone species is only important in early stages of succession, and so the ecologist can safely ignore changes in its population at later stages.
The keystone species is the most susceptible to pollution, and so its numbers give an indication of the levels of pollutants in an area.
The keystone species is critical to maintaining the stability of an ecosystem, and changes in its population indicate changes in ecosystem health.
The keystone species is important for the cycling of matter and must be maintained or the biogeochemical cycles will be affected.
3. Competition over resources occurs between organisms (1 point)
participating in an herbivorous relationship.
forming a symbiotic relationship.
attempting to occupy the same niche.
initiating primary succession after a disturbance.
4. The lowest trophic level in an ecosystem (1 point)
has the lowest quantity of stored energy.
has the greatest biomass.
is made up of heterotrophs.
contains detritovores.
5. What is true of the energy that is passed from one trophic level to the next in a food chain? (1 point)
About 10% of the energy passed from one level to the next is released as heat.
About 10% of the stored energy of one level becomes stored energy at the next higher level.
The energy at each level increases by about 10% with each move up in trophic level.
The total energy at all trophic levels is constant, but only about 10% is available for use by organisms for life functions.
6. Autotroph is to producer as heterotroph is (1 point)
herbivore.
consumer.
decomposer.
carnivore.
7. Which of the following is true of population cycles? (1 point)
Population cycles signal an imbalance in an ecosystem.
Keystone species are necessary to establish population cycles.
A new species introduced to an ecosystem tends to stabilize population cycles in the ecosystem.
Population cycling helps maintain a healthy ecosystem.
8. An example of a pioneer species is (1 point)
a sparrow.
a lichen.
an earthworm.
a spider.
9. Why are human disturbances often of more concern than natural disturbances? (1 point)
Human disturbances last much longer than natural disturbances so that a damaged ecosystem may have little or no chance of recovery.
Human disturbances are stronger than natural disturbances and so the recovery needed is much greater.
Human disturbances often cover much wider areas than natural disturbances, which means that more ecosystems are affected.
Human disturbances affect all types of ecosystems, whereas natural disturbances are limited to certain types of ecosystems.
10. Suppose a particular community is concerned about a fox population that kills and eats chickens on the local farms. What is the best course of action by this community? (1 point)
Kill the foxes.
Trap and transport the foxes out of the region.
Introduce rabbits as an alternative source of food for the foxes.
Build enclosures for the chickens that the foxes cannot access.

1) The feeding relationships among plants and animals and among various animals in a biotic community is called a:
A) biomass.
B) food web.
C) trophic level.
D) niche.
E) symbiosis
2) Which of the following is NOT a consumer?
A) an oak tree
B) a fish
C) a deer
D) a clam
E) an insect

I need to take pictures of a list of bio terms and put in a powerpoint and explain how each picture fits the term. Heres the words i need help on:
Population
Community
Ecosystem
Organism with Type III SUrvivorship Curve
Density dependent factor
Density independent factor
R Strategist species
Ecological Niche
Parasitism
Mutusalism
Commensalism
Climax community
Keystone species
succession
Biodiversity
Heterotroph
Decomposer
Euthrophication
Biological magnification
climate change
interspecific competition
intraspecific competition
Pioneer species
food web

I’m using the common app because I’m transferring from a community college to a 4 year university. There is a section called colleges & universities under education and it asks you to “Mark all that apply to the courses affiliated with this institution”:
Course taught online
Course taught on college campus
Course taught on secondary/high school campus (excluding AP/IB)
College credit awarded
Degree candidate
Transcript available Click here for more Info.
(If yes, please have an official transcript sent as soon as possible.)
So I don’t know if I should check off college credit awarded. When you take courses in college for credit wouldn’t it be college credit earned? Confused here. Please help me out

question 11) if an exotic bird species tha feeds on acacia seeds were introduced to this community in this habitat, which existing species would be expected to be most affected by this introduction?explain
question12) a species was identified as having niche with a high degree of niche overlap with the red rumped parrot in terms of its use of food resources.what predcitions would you make abt this species?