Large ordered structure, enclosed by a membrane, that carries out some life activities, such as growth and division.
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Seed Plants
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..
Inheritance and Probability
Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..
DNA Structure & DNA Replication
DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..
Ecology & Biodiversity: New Zealand Flora & Fauna
New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..
Cell Structure
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Freshwater Communities & Lentic Waters
Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..