why is bio diversity important to the health of life on earth?

Answer 1

Wow, I have a lot of pages with info about biodiversity. I just did it in school. I'm just going to copy the reasons of its importance here for you.

1.) Ecological stability
Research shows that the more diverse an ecosystem the better it can withstand environmental stress and the more productive it is. The loss of a species thus decreases the ability of the system to maintain itself in case of damage.

2.) Economic benefit to humans
Most people see biodiversity as a reservoir of resources to be drawn upon for the manufacture of food, pharmaceutical and cosmetic products. Thus resource shortages may be related to the erosion of the biodiversity.

3.) Ethical reasons
The role of biodiversity is to be a mirror of our relationships with the other living species, an ethical view with rights, duties and education. If humans consider species have a right to exist, they cannot cause voluntarily their extinction.

4.) Aesthetic pleasure
The aesthetic pleasure of zoos and nature reserves to humans.

Answer 2

To understand this you need to understand how Evolution works. There are good traits and bad traits. There are also neutral traits. If the environment changes then species draw on neutral traits to adapt. Since the species can't know what trait will be needed they need to have as big a pool of neutral traits as possible. That is diversity.

A similar diversity across species is also good. Often various species fill niche roles that can't easily be filled by another. Loss of diversity can lead to damage to multiple species.

Answer 3

the "health" of life on earth doesn't really mean anything

situations that are healthy to one species are unhealthy to another

bio-diversity just means that the life on earth is more resiliant, robust, and interesting

Answer 4

if there is no biodiversity and a race becomes basically clones of one another..then something will come along (disease, virus, etc.) that will wipe out the entire race as no one will be immune.