Which level of organization does the phrase below belong to? The air was cloudy as the birds and geese migrated south. They stopped on a tree to take a break and the sun began peeking out behind the clouds.

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

Which of the following is the most likely outcome of global warming

What best describes the dropping height of a ball that bounces back up to a height of 45 cm