Answer: Contractile vacuole of amoeba will shrink/contract when the organism is placed in sea water.
Contractile vacuole is a subcellular structure ( mainly found in protists) that is involved in the regulation of water quantity inside a cell.
As we know that water always flow from a hypotonic ( where solute concentration is less) to a hypertonic ( where solute concentration is more) solution. Sea water is a hypertonic solution as the concentration of salt is very high. Therefore, in this case, water will flow from contractile vacuole to outside of the organism.
Thus, contractile vacuole of amoeba will contract as it will lose water when placed in sea water.
The end of a difficult time (aka hope )
Answer:
C (All cells have a nucleus
.)
Explanation:
Prokaryotic cells do not have a nucleus, but they are still cells.
the age of Rock in years is called its absolute age geologist find absolute age by measuring the amount of certain radioactive elements in the rock
