What type of circulatory system do mollusks have? Which animal in this phylum is the
exception?

Molluscs with the exception of cephalopods have an open circulatory system I.e.the blood circulates with in vessels from the heart but it also fills open lacunas or cavities. In annelids the cieculatory system is closed, i.e. the blood circulates only inside blood vessels.

the correct answer was location c, because earth is tilted away from the sun at this time

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.