Answer:
Rocks which were underwater long time ago.
Explanation:
If we were hunting for trilobites in Canada, we look for those types of rocks where once water present on it because trilobites are the organisms which lived in the marine ecosystem so if they are present in marine so we have to look those rocks which were underwater millions of years ago. Trilobites are the extinct marine arthropods that were present around 521 million years ago.
Answer:
A
Explanation:
bacteria have cell wall in common with with other organism and also have some organelles in common with other living organisms.
Una célula eucariótica/ eucariota es una célula u organismo con un núcleo claramente definido y tiene una membrana nuclear que la rodea.
Answer:
1/ Climate change
2/ Asteroid impacts
3/ Massive volcanic eruptions
4/ Sun explodes
etc. (all the things above are most likely to happen but alien invasion or things like that is also a theory that you can add depends mostly if you like it or not)
