Which choice has eukaryotic animal cells? 1- oak 2- liver 3- virus 4- lactobacillus

the correct answer for k12(

Liver

Explanation:

Eukaryotes are organisms that are made up of cells that have a membrane-bound nucleus. They are commonly described as cells with a "TRUE" nucleus. Animals and plants are eukaryotes.

Since it says "Animal" we can cross out oak, because this is a plant. Viruses are not cells, they are not considered living organisms as well. Lactobacillus is a type of bacteria and bacteria is classified as prokaryotic.

Prokaryotes are different from eukaryotes because they lack that membrane-bound nucleus.  

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.