Scientists discover a new type of algae. It consists of long chains of identical cells. The chains form as cells in the chains divide but do not separate from each other. Which of the following best describes the discovery?

O unicellular species

O bacteria

O colonial organism

O multicellular species

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

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