Why is there no water between the rails in the rebuilt section of the subway tunnel? A. The channel under the rails is carved with smooth right angles and has places for the
water to drain.
B. There are no splintered wooden rail ties that would give way under the weight of a
subway car.
C. It has not been raining long enough for water from the thunderstorm to reach the
rebuilt section of the tunnel.
D. There used to be water there, but the critters that live under the rail ties drank it all.

The brother of a presidential candidate writes an editorial in which he defends this candidate against charges of corruption. in such a circumstance, it is most appropriate for the reader to a) suspect that the candidate may have been framed. b) consider whether the candidate has the best family or not. c) wonder if the writer may be biased, due to his family connection. d) wonder if the writer may be inaccurate, due to wanting to get people to read his column. \

Read the excerpt from it's our world, too! : young people who are making a difference. the author’s purpose in this excerpt is to

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: