Posts

Showing posts from April, 2020

Grade 7 classification of Animals

Image
Classification of Animals Animals are classified into two groups vertebrates and invertebrates Vertebrates Vertebrates are animals with backbone. Examples of vertebrates Fish, mammals, reptiles, amphibians, birds Invertebrates Invertebrates are animals without backbone. Coelenterates  - sea anemone annelids – earthworms, leeches echinoderms – starfish, sea urchins, sea cucumbers mollusks – snails, octopi, squid, snails, clams arthropods – insects, spiders, crustaceans such as shrimp, crabs, lobsters Vertebrates FISH The body of the fish is covered in scales and has fins attached to help it move through the water. Fish breathe using gills which take oxygen out of the water. When male and female fish mate, the eggs often meet the sperm in the water. This is called external fertilization. Examples of fish are the herring, Goldfish, Guppy, Northern pike, Wels catfish, Barramundi, Atlantic cod. AMPHIBIANS   The skin of amphibians is very ...

Grade 7 - Classification of Plants

Image
Classification of Plants Plants can be did into flowering plants(plants that bear flowers)and non-flowering plants ( plants that do not bear flowers) Flowering and  Non Flowering Plants Flowering plants - form seeds inside fruits that develop from the flowers. Flowering plants can be divided into monocotyledons ( with one cotyledon or seed leaf in the seed) and dicotyledon ( with two cotyledon or two seed leaves). Monocotyledons :( one seed ) MONO - one COTYLEDON - seed -flowers often small and pale, eg. Grass, corn -mainly small with thin trunks, eg. Coconut tree -leaves long and thin with parallel veins, eg. Grass -Seeds with one dicotyledon eg. Corn -Root has many small roots, eg. Onion These are examples of Monocotyledonous plants Dicotyledon  Plants DI - two COTYLEDON - seed - flowers often large and colorful, eg. Rose, flame tree - small, medium or large with very wide trunks, eg. Mahoe -leaves oval, h...