Changes in Food Webs – What is Change in Food Webs Equipped with Food Chain Arrangements, More in this Article Before reading the answer key in this article, you should work on the questions on pages 108 and 109 about the name of the ecosystem, causes of change, diagram of change food webs that occur, and advance information.
Excerpted from the Thematic Book of SD/MI Class V Theme 5 Ecosystem (2022) by Diana Puspa Page 107a change in one part of a food web will change another part.
In the rainy season, plants thrive and rice plants become fertile.
You can ask your brother, mother, or father for help if you have difficulties.
After working on the questions on pages 108 and 109 about the name of the ecosystem, the causes of the change, diagrams of changes in food webs that occur, and information, ask your brother, mother, or father for help to correct your answers.
After correcting, you can use the answer key below to match your answer.
Food Web Changes
Ecosystem Name, Cause of Change, Food Web Change Diagram, Description, Theme 5 Grade 5 SD MI
The increasing number of rice plants in the rice field ecosystem will increase the number of animals or consumers that eat rice, such as field rats.
An increase in the number of field rats will increase the number of one of the predatory animals, namely rice field snakes.
Rice field snakes are prey from other animals, such as eagles.
Therefore, the number of eagle populations in the rice field ecosystem will increase and so on.
The food chain as part of the food web in an ecosystem will not be broken as long as all parts of the chain continue to play a role.
The food chain in the rice fields will continue to form as long as the living organisms that make it up.
If one of the constituents of the food chain does not exist due to various factors, the constituents of the other food chain will be disturbed
If there is no rice, the field mice will starve and the rice field snakes will also have difficulty getting food.
The food chain will be disrupted and detrimental if the rice field snake which is supposed to prey on the field mouse turns out to prey on other animals, such as chicks that are kept by humans.
If one of the food chains is disrupted, the food web will be disrupted.
Changes that are natural and become part of the life cycle in the ecosystem, will not cause significant disturbance.
This is because the changes that occur are slow.
Sudden changes, even those that cause considerable damage, disrupt food webs.
Natural disasters, environmental pollution, fires, or even global warming, will usually result in disruption of food webs.
Among these changes, environmental pollution and global warming have a major impact on changes in food webs.
Changes in nature are often inevitable.
The ability of components in an ecosystem to adapt is necessary in order to survive.
Humans as the most civilized living creatures play an important role in changing these ecosystems.
Humans have almost always been able to interact with all components of the ecosystem since ancient times.
This article discusses the answer keys for theme 5 grade 5 SD MI pages 108 and 109 about the name of the ecosystem, the causes of change, diagrams of changes in food webs that occur, and descriptions.
This article was compiled to help SD MI students participate in learning from home during the Covid-19 pandemic.
Don’t forget to pay attention to the steps for working on the questions on pages 108 and 109 about the name of the ecosystem, the causes of the change, diagrams of changes in food webs that occur, and descriptions.
In this discussion, we will learn about the answer key for the 2022 Curriculum Integrated Thematic Book for Grade 5 SD MI Theme 5 Sub-theme 3 “Ecosystem Balance” Revised 2022 Edition Published by the Ministry of Education and Culture.
The answer key that will be discussed this time is the answer in the question of sub-theme 3 learning 2 pages 108 and 109 about the name of the ecosystem, the causes of change, diagrams of changes in food webs that occur, and descriptions.
Food Chain Structure
The food chain describes the different organisms that prey on each other to survive.
Quoted from bobo.grid.id The food chain consists of producers, consumers and decomposers.
1. Manufacturer
Plants are producers in an ecosystem.
Plants are called producers because they can make energy for the ecosystem.
Plants cook food and absorb energy from sunlight which is called photosynthesis.
In addition to sunlight, plants also carry out photosynthesis with water and nutrients from the soil.
2. Consumer
Animal groups are consumers.
Animals are called consumers because they do not produce energy, but only use energy.
Animals that consume plants directly are called first-order consumers or primary consumers.
Meanwhile, animals that are in the position of level one consumers are herbivores.
Carnivorous organisms that prey on herbivorous animals are called second-order consumers or secondary consumers.
When carnivores eat other carnivores, they are called third-order consumers or tertiary consumers.
While animals that are consumers who eat both plants and animals are omnivores.
3. Decomposer
Decomposers are organisms that eat decaying matter.
For example, the decaying bodies of animals and plants.
Organisms included in decomposers are worms, bacteria, or fungi.
Decomposers help return nutrients to the soil.
Furthermore, these nutrients will be re-used by plants to make energy.
Food Web Ecosystem Practice Questions
LET’S OBSERVE
Pages 108 and 109
1. Review your group’s work on food webs in the previous lesson.
2. Make a scenario of changes that may occur in the ecosystem. For example changes due to seasons, natural disasters, or human activities.
3. Then, note what will happen to the food webs in the ecosystem.
4. Also note the effect of these changes on the sustainability of the food web in the ecosystem in the description column (see the following example).
5. Draw a diagram to show the changes. You can use pictures to clarify your diagram.
6. Explain the results of your discussion in front of the class.
Thematic Answers for Class 5 Ecosystem
Ecosystem Name: Rice field Ecosystem
Causes of Change: The rat population increased and the eagle population decreased due to snake hunting.
Diagram of changes in the food web that occur
Rice – rat – snake – eagle – mushroom
Description: Rice acts as producer, rats act as consumers I, snakes act as consumers II, eagles act as consumers III, mushrooms act as decomposers.
Source Tribunnews.com, https://portaljember.tangan-rakyat.com/
