I believe that the answer above is correct, and that D. “They live in fresh water, are free living, and reproduce sexually and asexually” is correct.
Explanation:
Some types of planarians live in water, and some live on land. Most planarians live in fresh water and sometimes stay in a big group. Some types are parasites, that means they live off of other living animals.
D. They live in freshwater, are free-living and reproduce sexually and asexually.
Explanation:
Most planarians are found in freshwater. Since they reproduce through fission, they reproduce asexually. However, since they are heteromorphic, they also reproduce sexually.
One of the two ways minerals form is by: 1. crystallization of magma (cools inside the crust) or lava (cools & hardens on the surface) 2. crystallization of materials dissolved in water. When these liquids cool to a solid state, they form crystals.
The DNA fingerprint, produced by digestion of both sets of DNA by restriction enzymes, is run on an electrophoresis gel, stained, and photographed. The patterns are then compared.
