A basic virus is composed of a genome, capsid and viral envelope. Viruses are acellular, non-living organisms. They are classified as obligate intracellular parasites, which require a host organism to function.Know More
The genome of a virus is all of its genetic material. Viruses can either have DNA-based genetic material or RNA-based genetic material. Their nucleic acids can be single or double stranded.
Viruses also contain capsids, which are proteins that coat and protect the nucleic acids within the virus. Some viruses contain outer viral envelopes composed of lipids, carbohydrates and proteins to protect the entire virion. The Influenza virus is an example of an envelope virus.Learn more about Biology
All known living things are composed of one or more cells, and they contain carbon compounds and water. All known life reproduces independently and passes down heritable genetic information to offspring in the form of nucleic acids.Full Answer >
The biosphere is composed of the parts of Earth where life exists. It includes the dark environment of the ocean's deep trenches, the rainforests and high mountaintops. Bacteria, protozoa and up to 30 million species of animals, plants and fungi are included in the biosphere.Full Answer >
Multicellular organisms are composed of more than one cell, while unicellular organisms are a single living cell. This difference determines the size and complexity of an organism, as well as the division of labor within it. Each kind of organism has its own set of survival benefits.Full Answer >
Fats are composed of the elements carbon, hydrogen and oxygen. The proportion of hydrogen to oxygen atoms is consistently higher than 2:1.Full Answer >