features of organisms

• Vertebrates are animals which contain a backbone. 
• Mammals have fury skin and mammary glands (feed milk) 
• Birds have feathers on wings and scales on legs and feet (like chicken)
• Reptiles have scaly skin, lay eggs and some can regulate their body temperature by moving to the sun or shade.
• Amphibians live both on land and water. They breathe through lungs but also absorb oxygen from the air through their moist skin. Some amphibians hatch as tadpoles with fins and gills that allow them to swim underwater. As they grow into adults, they develop lungs instead of gills.
• Fish are cold-blooded aquatic animals that breathe using gills. Fish do not have lungs like mammals. Instead, fish extract oxygen directly from the water around them. The gill filaments increase the surface area available for gas exchange between the bloodstream and the surrounding water.
• Fish have scales fins for swimming, gils (filter water)covered by the operculum(flap of skin), lateral line containing sense organs.
• Amphibians have moist skin (frog)
• Invertebrates do not have backbones
• Arthropods are invertebrates and have exoskeleton (skeleton on the outside like crabs).
• Myriapods have antennae, segmented bodies and hard exoskeletons (millipede).
• Insects have antennae compound eyes, head, thorax, abdomen, 2 pairs of wings, 3 pairs of legs and mouthparts.
• Arachnids (spiders) have simple eyes, head and thorax are combines and 4 pairs of legs, powerful jaws and spinneret.
• Crustaceans (lobster) have a carapace (hard outer casing), claws with serrated edges, eyes, jointed limbs and limbs under their shells.
• Angiosperm are flowering plants, produce flowers fruit and seeds, extensive root system , contain xylem and phloem for transport of water mineral ions and sugars. Stomata allows co2 into the leaf and oxygen and water to leave can be monocotyledons (1 leaf) or dicotyledons (produce 2 embryonic leaves)
• Ferns leaves are known as fronds which  contain sporangia which release spores which are involved in reproduction. They have underground rhizomes which are found on root nodules which  send out roots and shoots with simple true root systems.
• Viruses consists of a protein coats surrounding a nucleic acid (either DNA or RNA) 
• Bacteria cells have cell wall and flagellum(a tail) they are pathogenic( microorganism which causes disease) and non pathogenic (yogurt making)  they are unicellular (one cell only) 
• VIRUSES ARE ALWAYS PATHOGENIC- CAUSE DISEASE AND ARE NOT LIVING (flu cold HIV(aids))
• Protist are eukaryotic organisms that do not belong to any other kingdom. Protists include amoebas, slime molds, ciliates, diatoms, dinoflagellates, and many more. Most protists are microscopic, but some are visible without magnification. Many protists are parasites, living inside animals or humans. Others are free-living and play important roles in ecosystems.
• Protoctists have animal or plant cell properties 


  ej chlorella
• Amoeba have no cell wall or chloroplasts and use diffusion to 


  obtain nutrients and oxygen
• Ciliate have hair like structures called cilia on their surface used for movement and feeding