Membrane proteins are among the most important proteins biologically because they allow cells to communicate with their environments. in humans, they determine whether the immune system recognizes the cell as foreign or not and they are the targets of most pharmaceuticals. in all organisms, membrane proteins are responsible for other functions as well. one function determines when and if cell division takes place. that is

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl

An area has a few days of low humidity, warm air temperature, and high air pressure. what kind of weather is this area experiencing? o fog o snow storms o sun

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate