Which term is defined as a subgroup of birds used for food production? poultry
O equine
swine
livestock

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Which would be the most useful source of evidence to support mcneill's contention?

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim