the liquid produced by the kidneys consisting mainly of water and nitrogenous wastes such as...
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Type: Glossary
a v-shaped extension of the mammalian soft palate, which closes the opening to the nasal...
Type: Glossary
an injection of a weakened or dead pathogen into the body to build up immunity against a disease...
Type: Glossary
an antigen preparation that stimulates the immune system to give protection against a particular...
Type: Glossary
a sac-like structure in plant cells that contains the cell sap. It supports the cell and helps...
Type: Glossary
a leaf with certain areas that lack chlorophyll. The leaf therefore contains both green and non-...
Type: Glossary
regions or bundles of vascular tissue consisting of xylem and phloem separated by cambium.
Type: Glossary
a lateral meristem in the vascular tissue of plants. The vascular cambium is the source of both...
Type: Glossary
(also called the stele) the region that includes the pericycle and the vascular tissues in a...
Type: Glossary
tissues that are responsible for the transport of substances within the plant.