Members of phylum Porifera are commonly known as spongs. They are generally marine and mostly asymmetrical animals. These are primitive multicellular animals and have cellular level of organization (lacks tissues). These Organisms (belonging to phylum Porifera) lacks most of the structures that are present in multicellular organisms like digestive system, respiratory system, Brain etc
Body of Spongs are made up of spicules or spongin fibers and these organism contain a water canal system which helps them in digestion, reproduction and catching their food in marine habitat.
Hi!
The answer is B) it should be repeated by other scientists.
Hope this helps!
-Payshence xoxo
Answer: Here you go!
Explanation:
Analogous structures are structures that are similar in unrelated organisms. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor. For example, the wings of bats and birds, shown in Figure below, look similar on the outside
The correct answer is "anisocoria". Anisocoria is the condition when the patient's pupils are normally unequal and the patient is asymptomatic and clinically stable. This should be differentiated in cases of patient with a relative afferent pupillary defect such is patients with optic neuritis or retinal detachment or in patients with neurological deficits.
