Examlex
The mass of a particular interstellar giant molecular cloud is 2 million solar masses. Approximately what is the mass of the hydrogen in this cloud?
Lineages
Sequences of species descending from a common ancestor, often shown in phylogenetic trees to illustrate evolutionary relationships.
Ancient Cetacean
Refers to the early, now-extinct members of the order Cetacea, which includes whales, dolphins, and porpoises.
Modern Cetacean
Refers to contemporary species of whales, dolphins, and porpoises that are members of the order Cetacea, adapted to life in the aquatic environment.
Pandemic Strain
A variant of a microorganism, such as a virus or bacterium, that causes disease outbreaks on a global scale.
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