1. Before most cell divisions, most cells donot increase in size.

2. During cell division, one of the daughtercells gets all of the larger chromosomes, and the other daughter cell gets allof the smaller chromosomes.

3. The number of chromosomes in a cell is duplicatedbefore the beginning of mitosis.

4. Many species of bacteria have a single circularchromosome that consists of double stranded DNA.

5. Under ideal conditions, some bacteria canreproduce every 20 seconds.

1. true

Explanation:

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .