An object that can transfer heat easily is a(n):
a.
radiator
c.
insulator
b.
conductor
d.
convector

Conductor

Explanation:

All substances on Earth are made up of matter which can be in the form of a solid, liquid or gas. Matter is also classified based on properties into Metals or Non-metals. These two groups, depending on their ability to transfer heat and temperature are classified into either CONDUCTORS or INSULATORS.

A conductor is an object that can conduct heat and electricity. They are usually solids that can endure heat i.e have high melting and boiling points. They transfer heat easily between surfaces. Example of a conductor are iron. Insulators, on the other hand, are poor conductors of heat and electricity. Hence, cannot transfer heat. Example is plastic.

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.