Living and non living things II - JSS1 Basic science Past Questions and Answers - page 1

Plants contribute to the health of ecosystems by producing oxygen through photosynthesis, providing habitats for animals, regulating the climate by absorbing carbon dioxide, preventing soil erosion with their root systems, and supporting biodiversity.

Animal organs perform specialized functions necessary for survival, such as the digestive system breaking down food for energy and nutrients, the respiratory system facilitating gas exchange, the circulatory system transporting oxygen and nutrients throughout the body, and the reproductive system ensuring the continuation of the species through reproduction.

Plants and animals are interconnected in ecosystems because they rely on each other for various needs. Plants produce oxygen, food, and habitats for animals, while animals contribute to pollination, seed dispersal, and nutrient cycling. This interdependence helps maintain ecosystem balance and sustains life on Earth.