In , Dissolved Substances Slowly Spread Out from Regions of High

question 9

Multiple Choice

In , dissolved substances slowly spread out from regions of high concentrations to regions of low concentration.

• A) diffusion
• B) osmosis
• C) active transport
• D) hypotonic transport

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Definitions:

Epidermis

(1) An outer layer of cells that covers the body of plants and functions primarily for protection. (2) The outer layer of vertebrate skin.

Nematode

Unsegmented worms of the phylum Nematoda, including both parasitic and free-living species that can be found in various environments.

Ectoderm

The outer germ layer of the early embryo; gives rise to the skin and nervous system. Compare with mesoderm and endoderm.

Protostomes

Animals that belong to the Protostomia, one of the major animal clades. Include the annelids, arthropods, and mollusks. Compare with deuterostomes.