Which are characteristics of natural selection? Select three options.

1) reproduction, heredity,

2) variation in fitness or

30 organisms,

4) variation in individual characters among members of the population. If they are met, natural selection automatically results.

Explanation:

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.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.