Q: Q: What do scientists think are the oldest eukaryotes? Read this paragraph and choose the correct option from the provided answers: Scientists think that protists are the oldest eukaryotes. Choices: - arthropods - fungi - prokaryotes - protists A:
A: protists

Q: Q: Smog is one example of what type of pollution? Read this paragraph and choose the correct option from the provided answers: This picture shows a thick layer of smog and dust over a very polluted city (Singapore). Smog in the air is a serious health hazard for people living in many big cities around the globe. Smog is one example of air pollution. Choices: - light - energy - sound - air A:
A: air

Q: Q: Opportunistic diseases are usually the direct cause of death of people with what disease? Read this paragraph and choose the correct option from the provided answers: boundary between air masses that is stalled in one place. Choices: - heart - parkinson - liver - aids A:
A: aids

Q: Q: Transforming from a caterpillar to a butterfly requires a lot of what? Read this paragraph and choose the correct option from the provided answers: This caterpillar is busily munching its way through leaf after leaf. In fact, caterpillars do little more than eat, day and night. Like all living things, they need food to provide their cells with energy. The caterpillar will soon go through an amazing transformation to become a beautiful butterfly. These changes require a lot of energy. Choices: - Water - fuel - food - energy A:
A: energy