What variable stars have pulsation periods between 1.5 hours and 1.2 days?

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

Describe five factors that influence the value of fuel

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?