Examlex
Suppose your friend has a baby and expects to return to work. If she asks how much she should plan on spending for childcare, you should note that the typical expense in the United States is about:
Guard Cells
Specialized cells in the epidermis of plants that regulate gas exchange and water loss by opening and closing the stomata.
Subsidiary Cells
Specialized plant cells located around the stomatal aperture, playing a key role in the opening and closing of the stomata for gas exchange.
Stomata
Tiny openings or pores found on the surface of leaves and stems that regulate gas exchange and water vapor between the plant and the atmosphere.
Aquatic Plants
Plants that are adapted to living in aquatic environments, including rivers, lakes, and swamps.
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