Functions of blood:
1. Blood carries oxygen from and carbon dioxide to lungs, nutrients from guts, urea from the liver.
2. It contains anti-bodies, hormones, haemoglobin and many other substances.
3. It distributes heat around the body.
Answer:
In order for scientists to keep track of endangered species and discover new species that are created due to the constant change.
Yaa that statement is true, complex chemical catalyst of living cells are enzymes
