Planarians have eyespots which help them to sense light. They cant see any clear <span>object but they can tell what is light or dark. Tapeworms dont see anything</span>
The answer should be physical.
For example, when water freezes, or melts, or boils, it's a physical change with temperature. However, correct me if I'm wrong.
Hope this helps :)
Answer:
it tells that earth's center is containing hot lava
Explanation:
A)sicnce the waves are going straight
B)seismic waves travel in straight path in earth
Answer:
the answer is selective permeability
Explanation:
A membrane that has selective permeability allows only substances meeting certain criteria to pass through it unaided. In the case of the cell membrane, only relatively small, nonpolar materials can move through the lipid bilayer (remember, the lipid tails of the membrane are nonpolar).
