Monday, 26 September 2016

Science review (PHS)

🔱Science review🔱

Adaptations - are special characteristics that help an organism to survive successfully in it's habitat.
Decomposer - an organism that feeds on dead organisms and waste.
Producer - an organism which is part of the first level of the food chain which produces it's own food.
Consumer - an organism that feeds on other organisms in a food chain.
Image result for biomesTaiga - Swampy coniferous forest of high northern latitudes.
Tundra - Treeless arctic region of Europe, Asia and Northern America.
Marine - Found in or produced by the sea.
Chaparral - Vegetation consisting chiefly of tangled shrubs and thorny bushes.
Estuary - The mouth of a large river.
Biomass - The total mass of living material in an area.
Numbers pyramid - The length of each bar shows the number of organisms at each level in the food chain.
Symbiosis - an interaction between two organisms
Commemsalism - Relationships between two organisms where one organism benefits from the other (for example; shark and echneidae, clown fish and anemone.)
Parasitism - A non-mutual symbiotic relationship between species where one species, the parasite, benefits the host (for example; parasite and human, louse and human.)
Mutualism - Each organism gets individual benefits (for example; bees and flowers, crocodile and plover bird.
Niche - The function or position of a species within a community.
Competition - A fight of two organisms for thing s that need to survive.
Classification - Arrange shared qualities.

1) The scientific method
    Image result for scientific method
  • Design an experiment
  • Make a model
  • Gather and evaluate evidence
  • Collect data / record observations
  • Ask a question
  • Make a hypothesis
  • Design an experiment
  • Observe the results
  • Make conclusions
  • Communicate

2) Difference between observation and inference
The difference between observation and inference is that an observation is when you look and record a thing, an inference is a logical reasoning.

3) What do plants compete for?
Image result for competitionPlants compete for sunlight and water to make food (photosynthesise) and to grow.

4) What do animals compete for?
Animals compete for food, water and mates.

5) What do humans compete for?
Humans compete for food, water, work and money.

6) Describe decomposers, consumers, producers and the first, second an third consumers.
All of these are part of the food chain, decomposers decompose dead organisms, first level consumers eats the producers (herbivores), the second level consumer eats the first level consumer. Finally, the third level eats the second level consumer.

7) What are the five kingdoms?
Image result for five kingdoms
  • Animals - Cheetah, leopards, cats, dogs, etc.
  • Fungi - Mold, yeast, etc.
  • Plants - White alder, grass, trees, dandelion, bushes, etc.
  • Bacteria - Vibrio, bacillus, etc.
  • Protoctista - Amoeba, algae.
8) Why is it important to preserve the environment instead of using it for profit?
If the environment is better, it will be better for our economics,
- Attract the tourists
- Make more rice even faster because rice in China is the 1st produced in the world.
- Make the country and the people inside the country even healthier.

9) Why is it important to prevent organisms from foreign places from coming into other countries?
Because not all animals are adapted to our environment, so do we, this may cause;
- Cause of extinction
- Makes more animals endangered
- Destroys our ecosystem.

Image result for GMO10) Why should people use genetically modified organisms (GMO)?
This strategy makes the plants stronger and may give us more products, and uses less of our water (clean water). There are many more reasons to support this idea.

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