The answers are isolation, adaptation, and overpopulation and if I'm wrong then switch isolation with variation.
Hope that helps.
First of, they are in two different phylum. Flat worms are in the planarian phylum while, Porifera is the sponges phylum. Sponge has no organs, and can reproduce asexually. Many flat worms are parasites while no sponges are. Another thing is sponges have no symmetry while flat worms have bilateral symmetry. Hmmm what else... on yes flat worms have one body opening while, i not 100% sure sponges have two.
Mycorrhizae fungus increases the area of the root for absorbing water and minerals from the soil.
Mycorrhizae will develop a mutualism symbiosis with the plant since they both get a benefit. <span>Mycorrhizae will get food from the plant and plant got more water and minerals.
Parasitic fungus only steals food from the plant without giving any benefit to the plant.</span>
After surgery of the hip, or of the bones of the leg, ankle, or foot, it is of the utmost importance for recovery to get the right amount of weight-bearing when moving around with crutches or frames
