Explanation:
Invading infectious diseases can, in theory, lead to the extinction of host populations, particularly if reservoir species are present or if disease transmission is frequency-dependent.
Well one is the ways that humans use soil affect the soil quality
Biological species is the term for a group of interbreeding organisms that are able to produce fertile young.
1) They are cold blooded
2) They respire both by Skin and lungs.
3) They lay eggs in water ; they have a 3 chambered heart.
