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23 terms

Science 7R final exam

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What are the 7 Characteristics of all living things?
1. Organization 5. growth and development
2. respiration 6. life span
3. reproduction 7. need non-living things
4. adjust to surroundings
Metabolism
All the chemical reactions that occur within an organism.
Growth
Producing more cells or replacing cells by the process of mitosis.
What are the three parts of the biosphere?
1. Land, 2. Atmosphere, 3. Water
Ecosystem
It consists of all of the abiotic and biotic factors of a community .
habitat
The physical location where an organism lives
Producer
Traps energy from the sun through the process of photosynthesis able to produce their own food.
Decomposer
Found at every level on the ecological pyramid.
Where do producers get their energy?
Sun (Fungi and Bacteria)
Carnivore
Eats meat
Herbivore
Eats plants
Omnivore
Eats meat and plants
Food chain
Demonstrates a SIMPLE flow of energy from one organism to another.
Food web
Demonstrates a MORE COMPLEX flow of energy since it is compared of an interconnected NETWORK of food chains.
Element
Pure substances that cannot be broken down.
Compound
Pure substances formed from the chemical combination of two or more elements.
formula
uses symbols and numbers to show the types and numbers of atoms in a single unit of a molecule.
What are the building blocks of proteins
AMINO ACIDS
Three points of Cell theory?
1. Basic Unit Of life
2. unicellular or multicellular
3. cells divide to form two identical cells through mitosis.
What piece of equipment helped scientists develop the cell theory?
The Compound Light Microscope- helped scientists develop the cell theory!
Vacuole
Temporarily stores water, waste and food.
Chlorplast
Contains organelle found in green plant cells and traps sunlight.
Cytoplasm
gel-like substance found inside eukaryotic cells that contain the cells organelles needed to carry out life process; It is the site of numerous chemical reactions