Answer: Hydrophobic hormones
Explanation:
Hydrophobic hormones are able to diffuse through the membrane and interact with the intracellular receptor.
These hormones travels in the blood plasma which is bound to the plasma protein.
Example: Steroidal hormones are highly hydrophobic in nature.Steroids are sex hormones related to the maturity of the body.
I can’t answer how lichens arrive in a barren landscape but I can answer the 2nd part
Lichens grow when exposed to water. When wet, lichens begin to photosynthesize.
The cerebrum is a large part of the brain containing the cerebral cortex it lies either in front or on top of the brainstem