An unknown galaxy has a disk at its center and arms that spiral from its core. which of the following classifications would best fit this galaxy's description? irregular spiral lens elliptical elliptic

What is the role of fadh2 in cellular respiration

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell