Which process can be described as two cell divisions, genetic variation, and haploid cells?
a. meiosis
b. mitosis
c. binary fission
d. fertilization

The correct answer is option A, meiosis

Reason -

In a meiosis cell division the number of chromosomes usually reduces by half of its original number. It helps in the production of gametes—sex cells, or sperm and eggs. In the phase I of meiosis, diploid cell is formed while in phase II of meiosis, haploid cell is formed.  Meiosis produces sex cells which are responsible for causing the genetic variation.

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.