Louis Pasteur's experiments showed that bacteria did not grow in a flask unless they first entered from the surrounding environment. What part of the cell theory did this prove? A - New cells come from preexisting ones
B - All living things are made up of at least one cell
C - Cells are the basic units of life
D - All cells are surrounded by a thin membrane

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Wich organism obtains its energy from dead or decaying matter

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?