Composed of mostly proteins and lipids, the cell membrane serves as the attachment point for the intracellular cytoskeleton in all cells and the cell wall in plant cells. the cell membrane's semipermeable nature allows it to regulate what enters and exits the cell. given this description, to what organ can the cell membrane best be compared? a. liver b. skin c. heart d. lung

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

During the final stage of the cell cycle, cytokinesis allows the cell to finish dividing, creating with copies of dna. can someone fill in the blanks?