Apply Your Knowledge 1. What might the consequences beon the bat and cacti population if this desert
region continued to experience several years of higher than average rainfall? How
would a decline in the cactus population affect the rest ofthe desert ecosystem
(i. e. other organisms such as rodents which feed on cactus fruit)?

b. the carbon cycle ensures living things have a source of hydrogen

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

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