How many carbons in amino acids?

Biologists recognize five levels of cell organization. the lowest and simplest is the cellular level. organisms here are either unicellular organisms, like protozoa, or colonial organisms. colonial organisms are composed of single-celled individuals that stay together to sustain the life of the whole colony. next on the scale of complexity is the level occupied by tissue. a tissue is a group of similar cells which perform a similar activity. tissues that are organized around a common function together make up an organ, the third level of complexity. the fourth level of organization is the system, formed by a group of organs which together perform a specific bodily process. the fifth and highest level is the organism level, in which body systems work together in a structure capable of independent life. main idea:

Within a farewell to arms, what would be the best definition of the word “regiments”?

Critical reading what do you think keats means in these lines from "when i have fears that i may cease to be"? i may never live to trace / their shadows, with the magic hand of chance a. i may never live to paint pictures of them. b. i may never have a chance to look at them again. c. i may never leave the shadows as long as i live. d. i may never live to write about them. select the best answer from the choices provided