Diamonds have a density of 3.5 g/cm3. What is the mass of a diamond that has a volume of 0.75 cm3? [3 marks]

What does it mean for a cell membrane to be selectively permable

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

Models are non-visual ways of coummincating how someone thinks about something in the natural world