Unformatted text preview: horizon? (a) It does not contain much decaying organic matter. (b) It lies above the C soil horizon. (c) Leeched minerals from the A horizon are found there. (d) It can be reached by some plant roots. (e) None of the above statements are untrue about the B soil horizon. Which of the following US States has the most acidic soil, on average. (a) Pennsylvania (b) Iowa (c) Oklahoma (d) California (e) Texas 3/5/10 lecture Pneumatophores are (a) modified leaves that help legumes climb vertically (b) extensions of roots that grow out of the water into air (c) piston‐like structures that enable fast leaf movement in venus fly traps (d) s...
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- Spring '08
- sieve tube cells, Venus fly traps, help legumes climb, store excess water, fast leaf movement