Brain death is characterized by a. two flatline EEG recordings taken 24 hours apart. b. a persistent vegetative state lasting longer than 18 months. c. EEG recordings void of beta waves for at least 48 hours. d. a continuous comatose state lasting longer than 12 weeks.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d