Soal IPA Kelas 7 : Materi Interaksi Makhluk Hidup Dengan Lingkungannya

Habitat refers to the specific place or environment where a living organism resides or is naturally found. It provides the necessary resources and conditions for the organism to survive and reproduce. This includes factors such as food, water, shelter, and climate. Therefore, habitat is the correct answer as it accurately describes the place where a living organism lives.

A population refers to a group of individuals of the same species that live in the same area and can interbreed. Among the given options, "sekelompok burung bangau" (a group of storks) fits this definition as it represents multiple individuals of the same species living together in one area. The other options, such as "seekor ayam bangkok" (a Bangkok chicken) or "sebatang pohon mangga" (a mango tree), do not represent a group of individuals of the same species. Similarly, "seekor semut rang-rang" (a red ant) refers to a single individual of a species.

The relationship between head lice and humans is an example of parasitism. In this relationship, the head lice benefit by feeding on the blood of humans, while humans are harmed as the lice cause itching and discomfort. This is a classic example of a parasitic relationship where one organism benefits at the expense of another.

In a food pyramid, the bottom position is occupied by the producers. Producers are organisms that can make their own food through photosynthesis or chemosynthesis, such as plants and some bacteria. They form the base of the food pyramid as they are the primary source of energy for all other organisms in the ecosystem. The consumers, including konsumen 1, konsumen 2, and konsumen 3, occupy higher positions in the food pyramid as they rely on consuming other organisms for energy.

The correct answer is "tekstur tanah gambut" because it describes a natural phenomenon that occurs in abiotic objects. Textur tanah gambut refers to the texture of peat soil, which is a type of soil composed of partially decomposed plant material. This is a natural occurrence in certain areas and is influenced by factors such as climate and vegetation.

The correct answer is 2, 3, 6, and 7. The question asks for the biotic components of an ecosystem. Biotic components refer to living organisms that are part of the ecosystem. In this case, the options 2, 3, 6, and 7 are all living organisms: padi (rice), burung belalang (grasshopper bird), pengurai oksigen (oxygen decomposer), and air (water). Therefore, these options are the correct answer as they represent the biotic components of an ecosystem.

The correct answer is 1, 3, and 6. This is because herbivores are animals that primarily eat plants. Based on the given list of animals, kambing (goat), ayam (chicken), and kelinci (rabbit) are all herbivores as they primarily eat plants. Macankucing (tiger-cat) and kerbau (water buffalo) are not herbivores as they are carnivores and omnivores respectively. Therefore, the animals that belong to the herbivore category are indicated by numbers 1, 3, and 6.

The correct answer is ular dan elang. Ular dan elang berperan sebagai konsumen tingkat III dalam rantai makanan. Ular adalah predator yang memakan hewan lain, termasuk hewan herbivora seperti ulat. Sedangkan elang adalah predator yang memakan hewan lain, termasuk ular. Kedua hewan ini berada di level konsumen tingkat III karena mereka memakan hewan-hewan di level konsumen tingkat II (seperti ulat) dan tidak memiliki predator alami di dalam ekosistem ini.

Ekologi adalah ilmu yang mempelajari tentang hubungan timbal balik antara makhluk hidup dengan lingkungannya. Ilmu ini melibatkan kajian tentang interaksi antara organisme dengan lingkungan fisik, serta hubungan antara organisme satu dengan yang lainnya. Dalam ekologi, dipelajari bagaimana organisme beradaptasi dengan lingkungan, bagaimana mereka saling bergantung satu sama lain dalam suatu ekosistem, dan bagaimana perubahan lingkungan dapat mempengaruhi kelangsungan hidup organisme.

The example of commensalism is the relationship between the orchid and the tree. In this relationship, the orchid benefits by using the tree as a support to grow and access sunlight, while the tree is neither harmed nor benefited. This is an example of commensalism because one organism benefits while the other is unaffected.