Unformatted text preview: acs under leaves of halophytes that accumulate salt (e) modified stems that store excess water Which unit might be used as a measure of population density for a tree species? (a) number of transects per kilometer (b) number of individuals per volume of water (c) dry weight per individual (d) number of pollen grains per square meter (e) amount of sur...
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- Spring '08
- sieve tube cells, Venus fly traps, help legumes climb, store excess water, fast leaf movement