1. What is the significance of the reason rule and sequencing?

Explanation:

A biological sequence may be defined as a single but a continuous molecule of a protein or a nucleic acid.  It can be a genetic map or an actual sequence of the amino acids or the nucleic acids. It can also be some more complicated data structure building of a composite view from other entries.

Sequencing is mostly used in molecular biology for studying the  genomes and proteins that they  encode.

The reason rule is the law of antitrust that says that a trade practice which violates the Act of Sherman only if that practice is the unreasonable restraint of some trade which is based on some factors.

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.

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.