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Accuracy in Science
Required so experiments can be repeated by others. If an experiment is repeatable it's validity can be tested.
Units of the Metric System
meter, kilometer, centimeter-length
Amount of space of an object. For liquid use a graduated cylinder in liters and mililiters. Measure at the bottom of the meniscus.
The amount of matter an object has. You use the triple beam balance and measure in grams and kilograms.
Characteristics of all Living Things
Growth and Development
Factors Effecting Enzyme Action
Temperature, enzyme concentration, pH balance, and substrate concentration.
An organism that obtains energy from sunlight or inorganic substances to make organic substances.
To Be Self-Sustaining
A source of energy
Organisms that make organic compounds
Recycling of materials
The process in which elements and other forms of matter are passed from one organism to another and from one part of the biosphere to another.
Succession following a disturbance that destroys a community without destroying the soil.
Membrane enclosed sac that contains material (food vacuole and contractile vacuole) (storage).
Endoplasmic Reticulum (ER)
Interconnecting channels that transport and store substances. Rough ER-ribosomes, Smooth ER-no ribosomes (hallways).
Contains chlorophyll; photosynthesis. (sun makes sugar, uses sun energy to make glucose) (plant cells).
Atomic Order (smallest to largest)
Atom, Compound, Organelle, Cells, Tissue, Organ, Organ System, Organism.
The theory that states 1) cells come from pre-existing cells, 2) cells are the basic unit of structure and function.
The diffusion of H2O. Osmosis is the process which water goes through a membrane so the cell can maintain water balance (equillibrium).
The process in which one molecule of glucose is broken in half, producing two molecules of pyruvic acid; a 3-carbon compound.
The process that releases energy by breaking down food molecules in the presence of oxygen.
Fertilization outside the female body (usually in water).
Animals: fish, amphibians, aquatic invertabres.
Fertilization inside the female body. Is an adaptation for land. Needs a penis and vagina or cloaca(birds) for sex organs.
Fraternal: 2 eggs released and fertilized separatly.
Identical: One fertilized egg splits into two separate parts during cleavage.
No placenta, the egg contains more yolk than placental mammals, the offspring are born premature and climb up to a pouch where they nurse on milk.
Development of the egg outside of the body. Land animals have a shell on the egg so they do not dry out.
Blood vessels from the embryo an mother make up the placenta. Nutrients, wastes, and gases diffuse across the blood vessels (blood does not mix). Drugs, alcohoal, and harmful chemicals can also pass through the placenta.
Meiosis to Differentiation
Meiosis, Fertilization, Mitosis (cleavage), Morula, Blastula, Differentiation (gastrula).
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