Many sponge species grow upright in branching tree-like (Fig. A few species can even bore into hard surfaces like clam shells, coral skeletons, and rock (Fig. Some sponges grow in thin encrusting layers over surfaces (Fig. All adult sponges are sessile, meaning they live permanently attached to rocks or other submerged objects and do not move about on their own. They are found in shallow ocean environments to depths as great as five kilometers (km). Although the majority of sponges are marine, some species live in freshwater lakes and streams. Sponges are simple invertebrate animals that live in aquatic habitats. Trending Questions Is the statement true that unlike planets a dwarf planet cannot have moons? Is this the answer the moon unlike the earth does not rotate so you see the same side of the moon? Why does the sky appear much bluer in some states? Can a spore be seen with the naked eye? Who sings so far away? Why is the heliocentric picture of the solar system called a model of the solar system? What model of the universe that suggests that the sun is the center of the universe was first brought by? What other planets in the solar system have wind? How are lunar and sonar eclipse different and alike? What are three ways that the inner planets are different from the putter planets? How high up does the troposphere go? Which planet has the lowest inclination to the ecliptic of any planet? A photograph showing circular star trails is evidence that the earth? What units are distances to stars measured in and why? What is the relationship between Vega and Pleiades? Two stars having annual parallax of 0.1 and 0.02 arc seconds respectively.If they appear to have same magnitude.The phylum Porifera comprises the sponges.
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