20 pts! place the following events in chronological order: a. the first cells appeared that could make their own food from sunlight. b. the ozone layer was formed. c. simple chemicals reacted to form new molecules. d. animals appeared. e. the first organisms appeared. f. humans appeared. g. the earth formed.

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

In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.