Answer: Pia mater. The pia mater (Latin: tender mother) is a very delicate membrane. It is the meningeal envelope that firmly adheres to the surface of the brain and spinal cord, following all of the brain's contours
Explanation:
<span>d. All of the above
These behaviors;
Spreading wings
Flattening feathers
panting
are all evolutionary process to maintain body temperature. Birds are warm-blooded animals. Also known as </span><span>homeotherms, which is defined as having the constant body temperature. This is a vital function for the survival of the specie.</span><span>
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The right option is; D) eye color, height, hair color
Inherited traits are characteristics of an organism that are coded in the DNA and are passed on from the parents. Inherited traits occur throughout the life time of an individual and it can also be passed on to the next generation. Examples of inherited traits include; eye color, height, hair color, length of toes and blood type.