Cycles

Zheng Hao observed two types of seeds. Seed X is light, dry and has a thin papery wing attached to it. Seed Y is heavy, juicy and surrounded by a sweet, brightly coloured fruit (like the papaya shown in the photo). Which row CORRECTLY identifies the method of seed dispersal for each seed and gives one reason?

In human reproduction, where does the fertilised egg usually develop into a baby?

A fruit farm in Singapore grows durian and rambutan trees. These trees rely on bees and other insects to carry pollen between their flowers. Due to a sudden pest outbreak, almost all the bees and other flower-visiting insects in the area die within a few weeks. The trees themselves remain alive and healthy. Which of the following predictions about the NEXT fruiting season is BEST supported by science?

The picture shows the four stages of a bean plant's life cycle: seed, seedling, mature flowering plant, and fruit (pods with new seeds). A scientist studies two species of plants:

Plant X produces about 10 LARGE seeds each year, each surrounded by a lot of stored food in its cotyledons.
Plant Y produces about 10 000 TINY seeds each year, each with very little stored food.

Both species have managed to survive in the wild for thousands of years. Which conclusion is BEST supported by this information?

Grace builds a closed terrarium by sealing some moist soil, a small plant and a few drops of water inside a clear glass jar with a tight lid. She places it on a sunny windowsill. After six months, she observes that the plant is still alive and the soil is still moist, even though she has never opened the jar to add more water. Which explanation BEST accounts for this observation using the water cycle?