Which of the following correctly describes the effect of climate on the evolution of vertebrates in the mesozoic?
a. temperatures increased across the permian-triassic boundary favoring the evolution of larger vertebrate fauna.
b. oxygen dropped across the permian-triassic boundary acting as a selective pressure for more efficient respiratory systems
c. carbon dioxide dropped across the permian-triassic boundary reducing the growth of plants which lowered food source availability.
d. the climate becomes more homogeneous in the permian than in the triassic slowing the rate of evolutionary change.

type 2 happens when excess consumption of high-sugar foods flood the blood supply with glucose and reduce the production and effectiveness of insulin. if a person has prediabetes, they can reduce the risk of full diabetes through regular exercise and a balanced, low-sugar diet.

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.