A rancher wants to investigate the use of artificial selection in his cattle herd. Which of these options is an example of artificial selection?
A) Breed a cow that produces large quantities of milk with a bull that comes from a line of cattle with long lifespans.
B) Trace the family tree of a chicken that lays many eggs back through several generations.
C) Separate a population of rabbits and monitor any trait changes over the next few generations.
D) Choose one individual in a population of sheep to favor with food and shelter and see if it mates more.

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.

the answer is otpion c) understanding

he wants to be heard one more time. he wants to be understood. he needs the truth one more time.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

cell division is not regulated in tumor cells.