Welcome to your Grade 10 Biology chapter 6
After carefully reading the following 30 questions, choose the correct answer.
1.
Organisms that trap energy and produce their own food are called:
2.
Animals that feed on both plants and animals are known as:
3.
What represents the nutritive interaction among biotic components in an ecosystem through a "to eat or be eaten" process?
4.
Which organisms are at the base or beginning of every food chain?
5.
In an ecological pyramid, which organisms are at the first trophic level?
6.
Why is the pyramid of energy always upright?
7.
What percentage of solar energy is typically converted by plants through photosynthesis?
8.
The process of water vapor meeting colder air and turning back into water droplets is:
9.
What is the unidirectional energy flow from the sun to producers and then to consumers called?
10.
Interconnected food chains that form web-like structures are called:
11.
Which process converts atmospheric nitrogen into a usable form for plants?
12.
In the nitrogen cycle, nitrogen combines with which element during fixation?
13.
What is the term for the position of an organism in an order of receiving solar energy?
14.
The process where protein in waste matter is converted to ammonia is:
15.
Which biological process produces carbon dioxide as a by-product?
16.
Water falling on earth as rain or snow is called:
17.
What contributes to the return of water vapor to the atmosphere from plants?
18.
An ecological pyramid representing the total mass of organisms at each level is a:
19.
Most energy in a food chain is lost as:
20.
Which organisms are considered heterotrophs?
21.
Energy flow in a food web is:
22.
How do plants obtain nitrogen according to the textbook?
23.
The process by which nitrates are converted back into atmospheric nitrogen is:
24.
What is the assumed trophic efficiency for each link in an idealized food chain?
25.
Which level of an ecological pyramid has the highest amount of energy?
26.
Solar energy is trapped by which organisms?
27.
Groundwater can join the water cycle through:
28.
Repeated "to eat or be eaten" represents:
29.
Water accumulated in the ground can come to the surface as a:
30.
Which cycle involves precipitation, evaporation, and condensation?
