Glands secrete different types of directly into the bloodstream. 10 points
hormones
neurons
signals
enzymes

Explain nonnuclear inheritance. ~ ap biology

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point