Question

Help please! Explain answers if possible. thanks

Tundra plants rely on vegetative reproduction or autogamy for reproduction. Why? (find out what autogamy is)

A. vegetative reproduction and autogamy greatly increase genetic diversity.

B. There must be low numbers and unreliability of pollinators.

C. these two reproduction methods make the plants more adaptable to changing conditions.

D. outbreeding only weakens subsequent generations.

What is meant by the word 'sustainability'

A. returning the natural environment to pre-industrial conditions

B. increasing agricultural output to feed the growing human population

C. preventing excessive urban developments

D. maintenance of a healthy environment and reasonable standard of living

What is the main reason so many species are currently under threat of extinction?

A. extinctions are cyclic, and we are in a peak now
B. habitat destruction and transformation
C. lack of appropriate ecosystem services
D. overhunting and overfishing by humans