The human body is composed of organ systems. which list represents a system organized from least to most complex? a) heart → cardiac muscle → muscle tissue → muscle cell b) lung tissue → trachea → nostrils → circulatory system c) muscle cell → muscle tissue → biceps muscle → muscular system d) integumentary system → skin cell → hair → sweat glands

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.

In which squares should the phrase "green pods" appear a) a and d b) b and e c)a,c, and d d)a,b,c,d and e

This connective tissue consists of large round densely packed cells with the nucleus pushed to one side.