Can y’all give me a hand?

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?

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Which blood cell spend most of their time in the lymphatic system?