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Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, they lack true tissues and organs, and have no body symmetry.
The shapes of their bodies are adapted for maximal efficiency of water
flow through the central cavity, where it deposits nutrients, and leaves
through a hole called the osculum. Many sponges have internal skeletons of spongin and/or spicules of calcium carbonate or silicon dioxide. All sponges are sessile
aquatic animals. Although there are freshwater species, the great
majority are marine (salt water) species, ranging from tidal zones to
depths exceeding 8,800 m (5.5 mi).
Hi there!
#1 Washing you’re hands after touching anything that may be dirty, or even just using the restroom.
#2 Disinfecting door nobs, handles, desks and things you may touch on a daily basis.
#3 Stay away from those you may think are sick.
#4 Having those around you remember to cover their mouths and noses while sneezing.
Remember to do this using the pit of you’re elbows NOT you’re hands. This can spread germs more easily.
Hope this helps you!
Answer:
When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. It can breed and spread quickly, taking over an area. Invasive species can change the food web in an ecosystem by destroying or replacing native food sources.
Explanation:
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I think d all of the above
