Science 20F Course Trivia Quiz! Exam

40 Questions | By Clahaie | Updated: Mar 22, 2022 | Attempts: 292

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Are you familiar with science 20F? Would you like to attempt to take this quiz? Science 20F is the foundational science course that deals with the fundamentals of chemistry, physics, and ecology. When the semester comes to an end, learners should understand scientific inquiry discovered and studied scientific skills and mindsets. This is the quiz for you if you want to learn more about Science 20F.

Questions and Answers

1.

The area of Canada with limited precipitation, few large plants, permafrost, and cold winter is called the __________ biome.
2.

The original source of energy for most ecosystems on earth is _________.
3.

Within a food web, plants are classified as __________ and animals as ___________.
4.

In a food web, organisms that break down organic matter, returning nutrients to the ecosystem for further growth, can be classified as _____________.
5.

A group of animals of the same species, and living in the same area, is called a __________.
6.

An area in which organisms interact with the physical environment (abiotic factors) is called an ______________.
7.

_____________ factors, such as sunlight and wind, influence organisms within an ecosystem.
8.

The largest population of a species that an ecosystem can support is called that.
- A.
  
  The top carnivore
- B.
  
  The top capacity
- C.
  
  The carrying capacity
- D.
  
  The carrying population
- E.
  
  None of the above
9.

The increasing concentration of a toxin in organisms as you move up the food chain is referred to as _________________________.
10.

At various stages in the decay process, bacteria breakdown nitrates to nitrites, and then to nitrogen gas in a process called _______________________.
11.

If fertilizers are carried from the land to an aquatic ecosystem with spring runoff, the population of algae will decrease.
- A.
  
  True
- B.
  
  False
12.

A rapid increase of the deer population always indicates the ecosystem is healthy.
- A.
  
  True
- B.
  
  False
13.

If the birth rate increases while the death rate and immigration remain the constant, the population will increase.
- A.
  
  True
- B.
  
  False
14.

Biotic potential is the minimum number of offspring that a species could produce, if resources were unlimited.
- A.
  
  True
- B.
  
  False
15.

Boreal forests receive less precipitation than tundra.
- A.
  
  True
- B.
  
  False
16.

In general, warmer biomes have greater biodiversity.
- A.
  
  True
- B.
  
  False
17.

The change in vegetation as you move in latitude from south to north is similar to climbing a mountain.
- A.
  
  True
- B.
  
  False
18.

Removing plants from an area win increase the fertility of the soil.
- A.
  
  True
- B.
  
  False
19.

Lakes that are covered by a thick layer of ice contain more oxygen than open lakes during the winter time.
- A.
  
  True
- B.
  
  False
20.

A step-by-step sequence showing how organisms feed on each other is referred to as:
- A.
  
  An ecosystem
- B.
  
  A food pyramid
- C.
  
  A population
- D.
  
  A food chain
21.

Fungi, mushrooms, and bread mould are all:
- A.
  
  Producers
- B.
  
  Herbivores
- C.
  
  Carnivores
- D.
  
  Decomposers
22.

An example of an endangered Canadian species is:
- A.
  
  Passenger pigeon
- B.
  
  Eastern cougar
- C.
  
  Atlantic cod
- D.
  
  Black bear
- E.
  
  None of the above
23.

There are 2000 white-tailed deer in a 100 km square forest. This description is of a deer:
- A.
  
  Community
- B.
  
  Population
- C.
  
  Biome
- D.
  
  Species
24.

Which of the following describes abiotic factors in an ecosystem?
- A.
  
  Competition between species
- B.
  
  Predator-prey relationships
- C.
  
  Birth rate
- D.
  
  Ecological niche
- E.
  
  None of the above
25.

Which organism would be part of a population that would have the least biomass?
- A.
  
  Beetle
- B.
  
  Spider
- C.
  
  Sparrow
- D.
  
  Hawk