What is a clone?
a genetically identical copy of a gene or organism

a ring of bacterial DNA with foreign DNA inserted

a mouse that has had some of its genes "turned off"

a genetically engineered organism with new traits

What does homeostasis means in biology?

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

Does masterbation affect height growth or loss of growth hormone?