Which energy transformation takes place when a match is struck against the side of a matchbox and burst into flames? a. electrical > light energy b. heat > kinetic enegry c. potential energy > electrical energy d. chemical energy > heat energy

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?

During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems