What similarities are found among segmented worms, like the leech, and flatworms, such as the tapeworm? What differences are found among these two groups?

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.