Examlex
Which molecule or ion does not have a tetrahedral molecular geometry?
Host Cell
A living cell in which a virus or parasite invades and multiplies, often causing harm to the host.
Sirenians
Aquatic, herbivorous mammals that include species such as manatees and dugongs, known for their slow-moving nature and paddle-like flippers.
Homologous Trait
Features in different species that are similar because of common ancestry, indicating evolutionary relationships.
Cetaceans
A group of marine mammals that includes whales, dolphins, and porpoises, known for their intelligence and aquatic adaptations.
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