What are the three modes of horizontal gene transfer?

What pattern of migration do whales follow?

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits

What problem would a person most likely have if her kidney did not work correctly?