Explain why one cell would have so many different kinds of proteins embedded in the cell membrane

membrane proteins play different roles (for example, transport of nutrients, signaling pathways, etc)

Explanation:

Membrane proteins are key components that form and interact with biological membranes. Thus, membrane proteins can be classified as 1-integral membrane proteins which are components of the cell membrane and 2-transmembrane proteins that penetrate the membrane in one or both sides of the membrane.  These proteins account for different cellular functions. Some functions of membrane proteins include:

- Cell structure (attachment to the extracellular matrix and/or the  cytoskeleton)

- Transport of nutrients and waste products  

- Intercellular interaction between cells.  

- Signaling transduction functions

- Cell recognition (e.g., during innate immune responses)

they fuse to form they have half as many chromosomes as a somatic cell of the same individual. b

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.