Can some one name a flashback charlie had about family in the book flowers for algernon

Although the account is in good standing at this point in time. is this sentence incomplete or complete?

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:

Read the excerpt below from the poem "exile" by julia alvarez and answer the question that follows. i let myself lie back in deep waters, my arms out like jesus' on his cross, and instead of sinking down like i'd always done, magically, that night, i could stay up, floating out past the driveway, past the gates, in the black ford, papi grim at the wheel, winding through the back roads, stroke by difficult stroke, out on the highway, heading toward the coast. which literary device is used in the comparison between the speaker's experience of fleeing the country and floating in the ocean? i let myself lie back in deep waters, my arms out like jesus' on his cross, and instead of sinking down like i'd always done, magically, that night, i could stay up, extended metaphor symbolism simile theme