Which of the following statements regarding model organisms is correct?
a. gregor mendel used pea plant as a model organism for his experiments because it was easy to cultivate and information about the chromosomes was available.
b. caenorhabditis elegans is a multicellular round worm with a short life cycle and the information about the chromosomes is available which allows easy genetic manipulation
c. a model organism should have a fewer offspring's, should have a short generation time and should be responsive to genetic manipulations.
d. according to cdc, 9 out of 10 leading causes of deaths have genetic components involved; therefore a model organism should not be responsive to genetic manipulations and should have longer and stable generation time

The correct answer will be option- C

Explanation:

The model organism is a non-human species organism used extensively in laboratories for genetic studies which acts as an ideal organism to another organism.

The concept of model organism began with the studies of the Gregor Mendel on pea plants and later several other organism like D. melanogaster, C. elegans, Yeast and others were used.

Since the C. elegans is a small roundworm and simple organism whose genome was sequenced in  1998 along with human genome in human genome project, therefore the C. elegans is used as a model which helps manipulation of genes of other genes.

Thus, option-C is the correct answer.

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.

there's no big difference.

explanation:

the only little different between a rabbit and bunny is just that bunnies are much smaller than rabbits. bunnies are basically baby rabbits.