The fossil record shows that an organism is relatively unchanged for a long period of time, followed by several changes over a short period of time, followed by another long period of stability. this provides evidence for which view of evolution? a. punctuated equilibrium b. monophyletic development c. biotic potential d. graduated speciation

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

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge

This is the nitrogenous base only found in rna