Use words from this list to complete the following paragraphs. The words may be used once, more than once or not at all. PALISADE CELL, EPIDERMIS, TISSUES, EXCRETORY SYSTEM, SPECIALIZED, CELLS, BLOOD, KIDNEY, CHLOROPLASTS, LEAF, RED BLOOD CELL, DIVISION OF LABOUR, XYLEM , PHLOEM, NERVOUS, SYSTEMS, ENDOCRINE, ORGAN a. Large numbers of ...... grouped together to form ..that have the same structure and function are for example. separate tissues may be joined together to form an Several which is a complex structure capable of performing a particular task with great efficiency. In the most highly developed organisms these complex structures may work together in for example the ..... removal of the waste products of metabolism. in humans is responsible for the (6) b. The structure of cells may be highly adapted to perform one function, i.e. the cells may become One excellent example is the ........ which is highly adapted to carry oxygen in mammalian blood. If the different cells, tissues and organs of a multicellular organism perform different functions they are said to One consequence of this is the need for close co-ordination show.... between different organs - this function is performed by the .... systems in mammals. ..... and (5) In plants an example of a cell highly specialized for photosynthesis is the which contains many in the organ called the.... .... These cells are located which limits water loss, and ..... which also contains other tissues such as which transports (5) water and mineral ions to the leaf.
