<span>In Integumentary system blood vessels are found in dermis and the blood vessels contract when the body is cold.
Dermis and epidermis are layers of the skin, dermis is the thick layer of tissues and it is present under the epidermis layer.
When we feel cold, our body supplies the warm blood to the skin. When contraction of blood vessels occurs, it reduces the flow of warm blood and reduces the heat loss. When we feel hot, blood vessels dilate.</span>
the answer is a or d and im leaning too a so i suggest getting a second opinion sorry i cant help much more than that.
Genotype because it means, the genetic makeup of an organism determined by it's alleles.
If there was once a fish there then that would mean the habitat of a fish was once there but dried up. a lake or river or even an ocean could have once been there but dried up and left a fish fossil