A-LevelBiologyBiodiversity and conservationMay/June 2025Paper 5 Q210 Marks
Sponges are immobile, aquatic animals that live on rocks and sediment at the bottom of salt water environments. [Figure 2.1] Fig. 2.1 shows an example of a sponge, growing on the seabed, in a marine habitat. There are many different species of sponge. Most species of sponge are sensitive to environmental stress. Human activity causes some environmental stress.
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