1 A day care is a business, and as a business owner you'll be in charge of employee management, bookkeeping, marketing, and other responsibilities that come with running a small business in addition to providing childcare.
Guard cells, chloroplast-containing cells scattered throughout the epidermal layers regulate the opening and closing of the stoma. Periderm tissue forms the outer bark of woody plants and will be discussed later. Observe the prepared slide of a leaf epidermis and compare with the micrograph below.
vascular cambium. a thin layer between the bark and the wood; slimy material; layer of meristematic tissue that produces new bark and new xylem and is responsible for the secondary growth of woody stems; forms new phloem cells.