Question

1. what do all living things have in common? *

made of cells
use energy
reproduce
grow
all of the above

1. what classifies a mass extinction? *

when three - quarters of all species vanish quickly
when you can no longer find that specific animal on the planet
when a large natural disaster destroys a portion of the environment

1. based on history, what can we say about biodiversity on earth? *

biodiversity naturally changes overtime.
biodiversity changes rapidly
biodiversity naturally shouldnt change but humans are the only reason it has

Explanation:

1. All living things are made of cells, use energy, reproduce, and grow. These are fundamental characteristics of life.
2. A mass - extinction is defined as when three - quarters of all species vanish quickly. The other options describe local extinctions or environmental changes, not mass extinctions.
3. Biodiversity naturally changes over time due to various factors like evolution, climate change, etc. It doesn't change only rapidly and humans are not the only factor causing change.

Answer:

1. E. All of the above
2. A. when three - quarters of all species vanish quickly
3. A. Biodiversity naturally changes overtime.