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Biology
Welcome to the Biology page. This is the last subject in this website, and the most interesting!
Some facts about biology:
-There are about 8.8 million biologists in the world
-Biologists study a lot of different kinds of life forms, and non-living things
-There are a lot of different branches of biology, such as: Marine biologist, Ecology, Microbiologist, etc.
Now those are just the introduction, the interesting stuff below awaits!
Introduction
Biology 9 Summary
Article 2: "Cells" The Building Blocks of Life Forms
Definition: A cell is the smallest living thing. Living organisms consist of one or more cells.
Types of Cells:
-Prokaryotic: Simple cells without a nucleus (bacteria).
-Eukaryotic: Complex cells with a nucleus and organelles (plants and animals).
Main Organelles:
-Nucleus: Controls activities and holds DNA.
-Mitochondria: Provides energy for the cell.
-Cell Membrane: Regulates what goes in and what goes out.
-Chloroplasts: Chloroplasts exist in plant cells; photosynthesis.
-Vacuole: Stores water and food.
Levels of Organization: Cells → Tissues → Organs → Organ Systems → Organism.
Biology Contents
Article 3: "Ecosystems" Nature's Web of Life
An ecosystem consists of all the living and non-living organisms in an environment. Living (biotic) elements—like plants and animals—cooperate with non-living (abiotic) elements like sunlight, water, and soil.
Energy flows through ecosystems in stages:
Producers create food through photosynthesis.
Consumers eat producers or other consumers.
Decomposers break down waste and recycle nutrients.
These interactions form food chains and food webs, showing how energy is passed between organisms. Equilibrium ecosystems depend on biodiversity, which helps keep population and resource balance stable.
When humans disrupt this balance by causing pollution, destroying habitats, or global warming, ecosystems get compromised. Understanding these systems assists us in learning how to conserve and maintain the natural environment.
Contents Part:2
Article 4: "Genetics"
Genetics means the science that deals with heredity, explaining how parents pass on specific characteristics to their offspring. The characteristics are controlled by DNA, a molecule consisting of genes that have the code for life.
Each gene has a specific locus on the chromosome, and different genes exist in pairs, one inherited from each parent. Gregor Mendel worked with pea plants to develop his principles of genetics: dominant and recessive genes. The dominant gene masks the expression of the recessive gene; for instance, brown eyes are dominant to blue eyes, so "B, b" would give an individual brown eyes
Genetic variation arises due to gene variations that make each individual different. Genetics is now helping scientists in sophisticated research and technology to improve healthcare, farming, and protection of the environment.
Conclusion
In short, Biology 9 is all about genetics, ecosystems, and cells. In the biology course, you won't just be writing all the time. You will also do experiments to show your learning.
Now that is all you need to know about what Palmer Secondary's Biology 9 course has to offer.
Whether you want to be informed about Palmer's biology course contents, or just visiting the website for fun, I hope you learned something from these articles today.
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