Practice Questions On Ecosystem! Quiz

15 Questions | By Yourmumratesme | Last updated: Mar 21, 2022 | Total Attempts: 2149

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Practice Questions On Ecosystem! Quiz - Quiz

Do you think you can pass this set of practice questions on an ecosystem? An ecosystem is a community of living organisms in tandem with non-living components of their environment interacting as a system. These items are connected through nutrient cycles and energy flows. Energy comes in by way of photosynthesis and is incorporated into plant tissue. If you need practice questions for a test, this is the quiz for you.

Questions and Answers

1.

What is the correct order of taxa from top to bottom?
- A.
  
  Kingdom, Class, Phylum, Family, Order, Genus, Species
- B.
  
  Kingdom, Family, Class, Phylum, Genus, Species
- C.
  
  Kingdom, Phylum, Order, Class, Family, Genus, Species
- D.
  
  Kingdom, Phylum, Class, Order, Family, Genus, Species
2.

What is the initial energy source for almost all communities
- A.
  
  Light
- B.
  
  Photosynthesis
- C.
  
  Heat
- D.
  
  Water
3.

A trophic level is a position on the food chain representing the type of substance an organisms eats.
- A.
  
  True
- B.
  
  False
4.

An autotroph is a(n)
- A.
  
  Organisms that secretes enzymes onto dead or decaying organic matter which causes decompostion then absorbs the products.
- B.
  
  Organism that synthesises its own carbon from inorganic materials.
- C.
  
  Organism that synthesis its own carbon from organic materials
- D.
  
  Organism that acquires its carbon from organic sources
5.

Whats the correct formula for population size given that B = births, I = immigration, D = deaths and E = emigration
- A.
  
  ( B + D ) - ( I + E )
- B.
  
  ( B - I ) + ( D - E )
- C.
  
  ( E - D ) + ( B - E )
- D.
  
  ( B - D ) + ( I - E )
6.

The consequences of a global temperature rise on arctic ecosystems would include.. Select the most suitable answer
- A.
  
  A larger rate of polar bears swimming north, rise of temperature in arctic regions, less coniferous forests, higher CO2 levels in atmosphere
- B.
  
  Everyone will die and drown because the sea levels will rise
- C.
  
  Polar ice-caps will melt, arctic species will become extinct, CO2 will increase in the atmosphere, permafrost turning into tundra
- D.
  
  Loss of ice habitat, increased success of pest species, tundra turning to wetland, coniferous forests will expand where tundra previously existed, expansion of range of habitats available to temperate species
7.

Populations tend to produce more offspring than the environment can support
- A.
  
  True
- B.
  
  False
8.

What is the correct definition of evolution?
- A.
  
  Evolution is the process by which favourable characteristics are selected over time by nature.
- B.
  
  Evolution is the process by which living organisms are formed, by gradual change, from previous organisms.
- C.
  
  Evolution is Darwin's theory concerning the links between organisms through a series of human induced change.
- D.
  
  Evolution is the process by which organisms have developed over time in order to survive.
9.

A _____________ is a group of related organisms having common characteristics, capable of breeding and producing fertile off-spring.
10.

______________ is the study of relationships between living organisms and their environment
11.

A _______________ is the interaction of different populations within a specific area.
12.

A _________ is a group of individual organisms of the same species living within a specific area.
13.

Explain how natural selection leads to evolution and explain an example of evolution in response to a human induce change.
14.

Explain how energy and nutrients enter, move through, and exit a food chain in an ecosystem.
15.

Distinguish between a consumer, detritivore and sapritroph.