15 questions from NYPS 2024. Real examination questions for PSLE 2027/2028 preparation.
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Fill in each blank with a suitable word.
Adaptations are like nature's survival kit, equipped with tools and tricks that help plants and animals thrive in their environments. These specialised traits help organisms obtain food, avoid predators and (1) with changing conditions, ensuring their continued existence in the natural world. (2) adaptations, organisms would certainly face a higher risk of extinction as they struggle to compete (3) resources.
Consider the humble moth, for (4), its wings are adorned with patterns that (5) the eyes of larger predators to scare off would-be attackers and keep (6) safe from harm. If an insect looks like a leaf it is not easily (7) by hungry birds. This explains why numerous insects (8) evolved to look like leaves over the last several thousand years.
Another animal, the chameleon, has an incredible (9) to change its colour to match the surroundings. This clever camouflage helps it blend in with tree bark or leaves, making it nearly invisible to predators and allowing it to sneak (10) on unsuspecting prey. In fact, certain prey species have bright-coloured or distinctive markings on their bodies to keep predators away.
Like animals, adaptations in plants are just as (11) for their survival in diverse environments. Cacti adapt to survive in arid environments by storing water in their thick stems. (12) from their stems, their shallow but wide-reaching root systems (13) them to quickly absorb water from rain or dew. The spines of the cacti also help them to (14) water loss. These features help them to survive in deserts.
As plants and animals adapt to their environment, they can protect (15) and ensure their continuity. Those that cannot will become extinct.