Energy Flow

Question 1

Radiant energy from the sun is converted into

Answer 1

Chemical potential energy during photosynthesis and carbohydrates are stored in green plants.

Question 2

Primary comsumers obtain their energy

Answer 2

From the plant producers they eat

Question 3

Secondary and tertiary sonsumers obtain their energy from

Answer 3

Primary and secondary consumers

Question 4

When the producers and consumers die

Answer 4

They are decomposed by bacteria and fungi and energy is released into the environment

Question 5

Food chain

Answer 5

Transfer of energy /flow of energy from the sun, through green plants and various organisms

Question 6

Food web

Answer 6

A food web is a network of interconnected food chains that illustrate the feeding relationships between various species within an ecosystem, showing how energy and nutrients are transferred from one organism to another through consumption.

Question 7

Trophic levels

Answer 7

Living organisms that occur at different feeding levels

Question 8

First trophic level

Answer 8

Producers that make their own food and have the greatest amount of energy

Question 9

Aspect

Answer 9

Amount of light available to you depending on the area you live in

Question 10

Second trophic level to fourth

Answer 10

Primary consumers, secondary and tertiary

Question 11

Energy is used by the organisms at each trophic level for

Answer 11

Growth(metabolism) and energy via respiration, urine and feces therefor the energy is not available for the next trophic level

Question 12

The longer a food chain

Answer 12

The less energy us transferred from one trophic level to another

Question 13

Arrows indicate

Answer 13

The direction of energy flow

Question 14

Different trophic levels are represented as

Answer 14

Ecological pyramids where the producers are the base

Question 15

Three types of ecological pyramid

Answer 15

Pyramid of numbers
Pyramid of biomass
Pyramid of energy

Question 16

Pyramid of numbers

Answer 16

Show the actual number of individuals on each trophic level followed by the decreasing level.

Question 17

Pyramid of biomass

Answer 17

Total mass of the organisms at each trophic level depending on the success or productivity of an ecosystem

Question 18

Pyramid of energy

Answer 18

Shwo the amount of energy that occurs on each trophic level

Question 19

Where is energy more lost, food chain or food web

Answer 19

Energy is lost more in a food chain.

Here’s why:

Food Chain:
- Energy transfer occurs in a linear sequence (e.g., producer → primary consumer → secondary consumer)
- Energy loss occurs at each trophic level (approximately 90% loss)
- Less efficient energy transfer due to fewer connections

Food Web:
- Energy transfer occurs through multiple pathways and connections
- Energy loss still occurs at each trophic level, but the web’s complexity provides more opportunities for energy transfer
- More efficient energy transfer due to redundant pathways

However, overall energy loss remains high in both food chains and webs, with only about 1-10% of energy transferred from one trophic level to the next.

According to the 10% Rule:

• Producers (plants): 100% energy
• Primary consumers (herbivores): 10% energy
• Secondary consumers (carnivores): 1% energy
• Tertiary consumers (top predators): 0.1% energy

This energy loss highlights the importance of energy conservation and efficient transfer in ecosystems.

Question 20

Predators

Answer 20

Catch their prey while they are still alive

Question 21

Examples of Decomposers

Answer 21

Bacteria and mushroom

Question 22

Extreme high temperatures can cause

Answer 22

Water loss in plants and animals

Question 23

Fires destroy

Answer 23

Habitats

Question 24

Droughts

Answer 24

Occur when there is little water or no rain in a long time

Question 25

Floods

Answer 25

Can put a strain on organisms as animals drown

Question 26

Volcanic activity

Answer 26

Ecosystem changes permanently because the environment is covered in ashes

Question 27

People

Answer 27

Hunt animals for food and poach animals and steal plants to sell them

Question 28

Deforestation

Answer 28

Trees are cut down and the habitat of animals is destroyed

Question 29

Farming

Answer 29

Destroys habitats

Question 30

Human activities that add to pollution of water✨, air and soil

Answer 30

Mining, infrastructure and farming/agriculture