Science

• Biodiversity is the variety of all living things and their interactions.
• Invertebrates are animals without backbone
• Vertebrates are animals with backbone
• Vertebrates divided into fish , amphibia, reptiles,birds and mammals
• Reptiles lay eggs and have scales
• Fish breathe through gills
• Amphibians live on land but breed in water
• Mammals give birth to live young
• Birds fly and have feathers
• Poikilothermic is an organism that has a body temperature that changes according to its surrounding temperature
• Homeotherm is an animals with body temperature that is constant and free from the influence of its surrounding temperature
• Non-flowering plants consist of moss,fern and conifers

  
• Flowering plant a plant that produces seed and flower. Each seed has a cotyledons which is stored food that is used by seed to germinate
• Xylem transports water and mineral upwards through stem
• A producer is an organism that produces its own food through photosynthesis
• A consumer is an organisms that eat another organism
• Decomposer breaks down dead organic matter into simpler substances
• Primary consumer are herbivores and omnivores that eat producer.
• Habitat is the natural surroundings or home of an organism.
• Species is a group of organisms that have common characteristics and can reproduce to breed offspring
• Population is a group of organisms of the same species that live in the same habitat
• Community is a few populations of different organisms that live together in one habitat
• Ecosystem is a few communities that live together in one habitat and have mutual interaction with one another including all the non living components such as water solid and air
• Interaction between animals divided into symbiosis , prey-predator and competition
• Symbiosis divided into mutualism , commensalism and parasitism
• Mutualism both partners get benefits
• commensalism one partner benefits while other does not get benefits or harmed
• parasitism one partner gets benefited while other get harms
• Prey-predator involves one organism that eat another organism
• Prey is organism that is eaten by the predator
• Predator is a the organism that hunts another organism for food
• Competition happens when organisms in one habitat compete for limited supply of basic needs such as light,space,water,food and mates