Calculate the power of a light bulb that uses 40J of electricity in 4 seconds.

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

There are only about 250,000 known fossil species. true or false

Explain why scientists use the word dominant for certain traits.