Hydrophobic is water fearing so this will be the inside or between.
Hydrophilic is water loving so this will be in direct contact with the water so it should go at two places.
The plasma membrane is AMPHIPATHIC (important word) meaning it was two sides a water loving and water fearing side. The circle is polar meaning is wants to make contact with water and the middle is non polar meaning it doesn’t want to be near water
The answer is B. Vascular plants and invertebrates appeared during this time.
Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.