Living and non living things II - JSS1 Basic science Past Questions and Answers - page 1
What is the primary role of plants in ecosystems?
Producing oxygen through photosynthesis
Providing habitats for animals
Regulating the climate
Preventing soil erosion
Which plant structure is responsible for absorbing water and nutrients from the soil?
Stems
Flowers
Leaves
Roots
What is the main function of animal digestive systems?
Transporting oxygen
Breaking down food for energy and nutrients
Facilitating pollination
Storing food
Which animal organ system is responsible for gas exchange?
Circulatory system
Respiratory system
Digestive system
Reproductive system
What is the primary role of animal reproductive systems?
Maintaining body temperature
Transporting nutrients
Ensuring the continuation of the species
Providing structural support
Which plant structure is essential for the process of photosynthesis?
Stems
Flowers
Leaves
Roots
What is the significance of animal circulatory systems?
Transporting oxygen and nutrients throughout the body
Anchoring the animal to the ground
Facilitating seed dispersal
Regulating body temperature
How do plants contribute to the health of ecosystems?
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.
What are some specialized functions of animal organs?
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.
Why are plants and animals considered interconnected in ecosystems?
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.