After the first 15 minutes, describe the cross-section of the thin celery slice. what does it look like? try to identify the stringy transport bundles of xylem and phloem. what color are they? how does this lab prove vascular tissues carry water and minerals up the stem? after 24 hours, look carefully at the leaves of the celery. what color are they? explain the change in color of the leaves that you saw.

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

What term describes a doctor who becomes a specialist by meeting standards beyond those of getting a license and passing a test in the specialty area?