Why spaghetti a heterogeneous mixture? a. its ingredients cannot distinguish easily
b. its has a main component or base ingredient.
c. its ingredient can be distinguish easily
d. it is delicious and mixed well​

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.

blue stars have the highest surface temp

stellar distances are usually expressed in light-years

the measure of a star's brightness is called magnitude

hope this !