How critical thinking can empower a speaker

Essay about how to keep environment clean and safe?

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:

Question 5 the poet protests against child labor and condemns the harm done to children exploited in this practice. yet in lines 23-24, the child narrator writes that “tho' the morning was cold, tom was happy and warm / so if all do their duty, they need not fear harm.” this is an ironic expression of the narrator’s