In a cell, a. energy-releasing reactions are coupled to energy-absorbing reactions. b. more energy is used up than is produced. c. energy-absorbing reactions and energy-releasing reactions are unlinked. d. there are many more energy-absorbing reactions than energy-releasing reactions. e. energy-absorbing reactions are coupled to energy-releasing reactions via electron carriers.

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

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers