Hemoglobin is a protein that binds to oxygen. It is only produced by red blood cells and it allows blood to transport oxygen throughout the body. What statement does this information best demonstrate?
A.
Proteins with similar functions to those produced in humans can be found in other species
B.
Proteins in specialized cells are the result of the expression of particular genes.
C.
Specialized cells that are grouped together and perform similar functions are called tissues.
x D
The proteins produced by cells have structures that are related to their function.

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

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.