SCIENCE UPPER TEST

After 4 days under water, what happened with the egg?

After 4 days under vinegar, an egg...

• ... reminds the same so nothing happened.

• ... has been destroyed

• ... looks like overcooked

• ... is elastic

  because of its semipermeable membrane.

____________ is the ability of a substance to allow gases or liquids to go through it.

An ecosystem is a __________ area where plants, animals, and other

___________, as well as weather and _________, work together to form a

______ of life.

Ecosystems contain:

• plants and animals

• rocks and plants

• biotic and abiotic

• biotic living things

Explain with an example the connection and interdependence between ecosystems' factors:

What would happen if corals didn't exist?

Which are the biotic and abiotic factors?

Coral is an abiotic factor.

• True

• False

Corals are buildings designed to give protection from bad weather, danger, or attack to living factors.

• True

• False