Duplication is a chromosomal mutation in which part of the chromosome breaks off and is incorporated into its a) homologous chromosome.
b) parent chromosome.
c) nonhomologous chromosome.
d) base pair.

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?

How do living things obtain phosphorus