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.
The Bark: phloem: Phloem tissue makes up the inner bark. However, it is vascular tissue formed from the vascular cambium. The Bark: phloem: sieve tube elements: Sieve tube elements actively transport photosynthates down the stem. Conifers have sieve cells instead.