How do fishes move effectively through such a dense medium as water

Fish Body Shape and Movement. Like all animals, the fish's body is a result of specialization in its environment. Water is about 800 times thicker than air and an aquatic life has its own difficulties, such as buoyancy, drag and the amount of effort needed to move through such a dense medium

i don't know. if i were you, i would search it up online : d

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set