Compare and contrast some features of prokaryotic and eukaryotic cells. Match each statement with the correct cell type. 1. Lack of membrane-bound nucleus.2. DNA in cytoplasm.3. Single, circular chromosome.4. Membrane-bound nucleus.5. DNA inside nucleus.6. Multiple chromosomes. 7. Prokaryotic Cell. 8. Eukaryotic Cell.

Prokaryotic cells are cells with simpler features without membrane-bound organelles and nuclei. They are unlike the more complex eukaryotic cells with specialized organelles like the nucleus and membrane-bound mitochondrion, chloroplast, lysosomes, etc.

Both prokaryotic and eukaryotic cells have some basic features in common such as the presence of ribosomes for the synthesis of proteins and cell membrane for maintaining homeostasis. However, the absence of nuclei means that prokaryotic cells have their genetic materials which could be as simple as a circular chromosome lying freely in the cytoplasm.

That being said, each of the statements in the illustration can be matched as follows:

Prokaryotic cells: lack of membrane-bound nucleus, DNA in cytoplasm, single circular chromosomes

Eukaryotic cells: membrane-bound nucleus, DNA inside the nucleus, multiple chromosomes.

More on prokaryotic and eukaryotic cells can be found here:

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.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.