Answer:
see explanation
Explanation:
Osmosis refers to the movement of solvent (mostly water) molecules through a selectively (semi) permeable membrane from a region of lower solute concentration to a region of higher solute concentration, in such a way as to equate the solute concentrations on both sides.
The salt (solute) is in higher concentration outside the lettuce. Hence, water moves from inside the lettuce where there is lower salt concentration outwards to the point of higher solute concentration in order to equate the salt concentration on both sides.
Answer: A. Extirpation
Explanation:
The term extirpation is also known as local extinction. It is situation whereby a particular species ceased to exist in an environment where it was once found, though it's existence is still observed elsewhere.
Extirpation maybe as a result of unfavorable environmental and human factors such as hunting, food scarcity and climate variation.
Well it can be hard to identify if rain is acidic or not
Answer:
The first one and the second one.
This is because they contain air: that feeling comes from the air sacs in your body being squashed by the pressure of the water. Fish living closer to the surface of the ocean may have a swim bladder – that's a large organ with air in it, which helps them float up or sink down in the water