Mendel drew several key conclusions based on his observations of pea plants. Which of the following best describes one of his conclusions?
A. A parent can pass on only one factor for each trait to its offspring.
B. An offspring that inherits different versions of the factor for a trait
will not survive.
C. Hereditary factors blend together to produce the traits of
offspring
D. Dominant hereditary factors are those that help an individual
survive and reproduce.

the answer is d (apex) good luck : ))

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.