energy flow in ecosystems

Question 1

photosynthesis

Answer 1

Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.

Question 2

producer

Answer 2

one that produces especially : one that grows agricultural products or manufactures crude materials into articles of use.

Question 3

consumer

Answer 3

A consumer is the final user of a purchased product or service. … Consumers can be either an individual or group of people who purchase or use goods and services solely for personal use, and not for manufacturing or resale.

Question 4

decomposer

Answer 4

Examples of decomposers are fungi and bacteria that obtain their nutrients from a dead plant or animal material.

Question 5

cellular respiration

Answer 5

cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances

Question 6

food chain

Answer 6

food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.

Question 7

food web

Answer 7

A food web consists of all the food chains in a single ecosystem. … Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem

Question 8

trophic level

Answer 8

Trophic level is defined as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans

Question 9

carbon cycle

Answer 9

Photosynthesis, Decomposition, Respiration and Combustion

Question 10

nitrogen fixing bacteria

Answer 10

Examples of this type of nitrogen-fixing bacteria include species of Azotobacter, Bacillus, Clostridium, and Klebsiella.

Question 11

nitrogen cycle

Answer 11

There are five stages in the nitrogen cycle, and we will now discuss each of them in turn:

Question 12

phosphorus cycle

Answer 12

Weathering.
Absorption by Plants.
Absorption by Animals.
Return to the Environment through Decomposition.

Question 13

ecological succession

Answer 13

Ecological succession is the process of change in the species structure of an ecological community over time.

Question 14

primary succession

Answer 14

Primary succession is ecological succession that begins in essentially lifeless areas

Question 15

secondary succession

Answer 15

An example of secondary succession is the development of new inhabitants to replace the previous community of plants and animals that has been disrupted or disturbed by an event

Question 16

pioneer species

Answer 16

The term pioneer is used to describe the species that first colonize new habitats created by disturbance

Question 17

climax community

Answer 17

An ecological community in which populations of plants or animals remain stable and exist in balance with each other and their environment.