leaf wiki:
>This article is about the leaf, a plant organ. See Leaf (disambiguation) for other meanings. In botany, a leaf is an above-ground plant organ specialized for photosynthesis. For this purpose, a leaf is typically flat (laminar) and thin, to expose the chloroplast containing cells (chlorenchyma tissue) to light over a broad area, and to allow light to penetrate fully into the tissues. Leaves are also the sites in most plants where respiration, transpiration, and guttation take place. Leaves can store food and water, and are modified in some plants for other purposes. The comparable structures of ferns are correctly referred to as fronds.
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animal wiki:
>For the Muppet Show character, see Animal (Muppet). For the professional wrestler, see Joseph Laurinaitis. Porifera (sponges)Ctenophora (comb jellies)Cnidaria (coral, jellyfish, anenomes)Placozoa (trichoplax)Subregnum Bilateria (bilateral symmetry)Acoelomorpha (basal)Orthonectida (flatworms, echinoderms, etc.)Rhombozoa (dicyemids)Myxozoa (slime animals) Superphylum Deuterostomia (blastopore becomes anus)Chordata (vertebrates, etc.)Hemichordata (acorn worms)Echinodermata (starfish, urchins)Chaetognatha (arrow worms)Superphylum Ecdysozoa (shed exoskeleton)Kinorhyncha (mud dragons)LoriciferaPriapulida (priapulid worms)Nematoda (roundworms)Nematomorpha (horsehair worms)Onychophora (velvet worms)Tardigrada (water bears)Arthropoda (insects, etc.)Superphylum PlatyzoaPlatyhelminthes (flatworms)Gastrotricha (gastrotrichs)Rotifera (rotifers)Acanthocephala (acanthocephalans)Gnathostomulida (jaw worms)Micrognathozoa (limnognathia)Cycliophora (pandora)Superphylum Lophotrochozoa (trochophore larvae / lophophores)Sipuncula (peanut worms)Nemertea (ribbon worms)Phoronida (horseshoe worms)Ectoprocta (moss animals)Entoprocta (goblet worms)Brachiopoda (brachipods)Mollusca (mollusks)Annelida (segmented worms) Animals are a major group of organisms, classified as the kingdom Animalia or Metazoa. In general they are multicellular, capable of locomotion and responsive to their environment, and feed by consuming other organisms. Their body plan becomes fixed as they develop, usually early on in their development as embryos, although some undergo a process of metamorphosis later on. Human beings are classified as members of the animal kingdom.
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