梯田
发表于 2025-3-28 15:10:42
Bacillariophyta, damp terrestrial habitats. They are well represented in marine phytoplankton and may account for 20% of global photosynthetic carbon fixation. However, the vast majority of the estimated 100,000 species are benthic, living attached to surfaces or gliding over sediments using a unique organelle, the
Ringworm
发表于 2025-3-28 20:33:05
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obstinate
发表于 2025-3-29 01:53:46
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ARY
发表于 2025-3-29 03:29:44
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悲观
发表于 2025-3-29 10:17:53
Chlorarachniophytes, temperate seas. The group is primarily studied due to their evolutionary history. Chlorarachniophytes acquired photosynthesis by secondary endosymbiosis, where an amoeboflagellate host took up a green algal symbiont and retained it. The symbiont is distinguished by having retained a relict nucleus,
collateral
发表于 2025-3-29 11:58:04
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Tortuous
发表于 2025-3-29 16:21:20
Choanoflagellatea,morphology, present in all species, is an ovoid to round protoplast with one apical flagellum surrounded by a collar of microvilli. Phylogenetic studies indicate that choanoflagellates are the closest known living relatives of animals, which has led to a focus on this group to reconstruct the histor
avulsion
发表于 2025-3-29 20:05:51
Chrysophyta,s silicified .. They occur mainly as phytoplankton in temperate freshwaters, and their distribution is ecologically determined, mainly by temperature and pH..Cells are naked or in many cases surrounded by an envelope, e.g., of species-specific silica scales manufactured from the chloroplast ER and .
食道
发表于 2025-3-30 02:17:48
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饶舌的人
发表于 2025-3-30 06:17:29
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