<span>Not all isolines end at the edge of an ocean. However, the line where the land meets the ocean is an isoline, because they are the same height above sea-level...</span>
<span>A. No learning is necessary. In order for a behavior to be called innate, the action must be instinctively done towards a defined stimulus</span> without previous experience or practice. An example of innate behaviors is a young kangaroo (joey) climbing into its mother's pouch right after it was born.
❅ Female.
But also remember there is no biological 3rd gender.
Answer:
50% or 1/2 in fraction form
Answer:
What can be noticed about the ligands and their receptor is that the configuration of both coincide, as a key would with its lock, which demonstrates the specificity of a receptor by its ligand.
Explanation:
A <u>ligand</u> corresponds to a molecule considered a signal or a messenger, while the <u>receptor</u> is a protein on the cell surface, with the capacity to accept a ligand.
Ligands and receptors constitute pairs that complement each other, so that <u>each receptor can bind to a specific ligand</u>, similar to what happens with a key and a lock.
Once the ligand-receptor complex is formed, changes occur inside the cell, which define a certain effect.
