One of the primary advantages of cell culture is the ability to isolate a single type of cell from a multicellular organism.
How has this advance changed the study of biology?

A.) Single-type cultures are easier and cheaper to maintain than cultures made of mixed cell types.

B.) Scientists can completely avoid using animal or human test subjects during their experiments.

C.) Cultures with single cell types behave in culture exactly as they would behave in a tissue or organ.

D.) Scientists know that any response during an experiment is associated only with that cell type.

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)

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.

the answer is sex-linked recessive.