Explain what is meant by 'root cells are hairy'

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 organelle releases chemicals that break down large food particles into smaller ones?

Which organ controls breathing? lungs alveoli heart diaphragm