Answer:
A. Ions are unable to move through the phospholipid bilayer because the nonpolar tail regions of the phospholipids are hydrophobic.
Explanation:
Answers B, C, and D are wrong.
The danger receptor is called nociceptor; this signals the brain to pull the injured part away from danger. Signal travels to the posterior or dorsal horn of spinal cord.
Answer:
A: salinity/salinization
Explanation:
The carbon cycle explains how carbon is made available to life forms. The main processes of the carbon cycle are photosynthesis, respiration, decomposition, natural weathering of rocks and burning fossils fuels so (Option A) is not part of it
They are known as Secondary Waves. : )
