Which of the following correctly describes the pathway taken by a protein destined for secretion from an animal cell?
a)rough er → transport vesicle → golgi → transport vesicle → lysosome → plasma membrane
b)plasma membrane → transport vesicle → golgi → transport vesicle → rough er
c)rough er → transport vesicle → golgi → transport vesicle → plasma membrane

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h, o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Everything that surrounds a particular organism