| 释义 |
Definition of alga in English: alganounPlural algae ˈalɡəˈælɡə A simple, non-flowering, and typically aquatic plant of a large group that includes the seaweeds and many single-celled forms. Algae contain chlorophyll but lack true stems, roots, leaves, and vascular tissue. Divisions Chlorophyta (green algae), Heterokontophyta (brown algae), and Rhodophyta (red algae); some (or all) are frequently placed in the kingdom Protista Example sentencesExamples - The classical examples of symbiosis are the lichens, in which a fungus is associated with an alga or a cyanobacterium.
- It is a blue-green alga, a primitive plant of the same class as seaweeds or the green slime seen on rocks and jetties when uncovered by the sea at low tide.
- Most of the lichen is composed of fungal filaments, but living among the filaments are algal cells, usually from a green alga or a cyanobacterium.
- The phenomenon was first described in a red alga and a green alga more than 30 years ago.
- That is, a simple alga like Volvox and a complex metazoan like an octopus both occupy the same sublevel.
Derivatives adjective ˈalɡəlˈælɡ(ə)l Relating to or characteristic of algae. opaque covers were placed over the containers to limit algal growth Example sentencesExamples - The diet of Daphnia was supplemented with an algal suspension of Chlorella SP.
- Photosynthesis and primary production were the monopoly of bacteria and algal protists that populated the world's shallow seas.
- After their split from the green algae, a red algal cell was engulfed by a nonphotosynthetic protist and reduced to a plastid.
Origin Mid 16th century: from Latin, 'seaweed'. Definition of alga in US English: alganounˈælɡəˈalɡə A simple, nonflowering, and typically aquatic plant of a large group that includes the seaweeds and many single-celled forms. Algae contain chlorophyll but lack true stems, roots, leaves, and vascular tissue. Divisions Chlorophyta (green algae), Heterokontophyta (brown algae), and Rhodophyta (red algae); some (or all) are frequently placed in the kingdom Protista. See also blue-green algae Example sentencesExamples - The classical examples of symbiosis are the lichens, in which a fungus is associated with an alga or a cyanobacterium.
- The phenomenon was first described in a red alga and a green alga more than 30 years ago.
- Most of the lichen is composed of fungal filaments, but living among the filaments are algal cells, usually from a green alga or a cyanobacterium.
- That is, a simple alga like Volvox and a complex metazoan like an octopus both occupy the same sublevel.
- It is a blue-green alga, a primitive plant of the same class as seaweeds or the green slime seen on rocks and jetties when uncovered by the sea at low tide.
Origin Mid 16th century: from Latin, ‘seaweed’. |