Which of the following describes a similarity and a difference between isotopes of an element?

a. same atomic number; different number of protons

b. same number of protons; different atomic number

c. same atomic number; different mass number

d. same mass number; different atomic number

e. same number of neutrons; same number of protons

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Can someone pretty me with this ? it’s urgent.compare the three theories of emotion. here are the three theories of emotion. cannon-bard theory of emotion: the belief that both psychological arousal and emotional experience are produced stimultaneously ( at the same time) by the same nerve stimulus. james-lange theory of emotion: the belief that emotional experience is a reaction to bodily events occurring as a result of an external situation. ( “ i feel sad because i am crying.) schachter-singer theory of emotion: the belief that emotions are jointly determined by a nonspecific kind of psychological (bodily function) arousal and its interpretation, based on environmental ( natural surroundings) cues. which of these theories makes most sense to you? why. your response should be written using proper english spelling and grammar. and it needs to be 10 complete sentences.

The cell membrane controls what enters and leaves the cell. which of the structures in the diagram below is the cell membrane? — f оооо