Rocks containing 450 million year old Ordovician fossils contain jawless fish. Younger Devonian rocks that are only 400 million years old contain fossils of jawless fish and fish with jaws. This evidence supports the idea that -
-species can suddenly appear in the fossil record.
-there are large gaps in the fossil record.
-older rocks are found above younger rocks.
-groups of species have changed sequentially.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!

what are the options