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.
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PNS and SNS</h2>
Explanation:
Parasympathetic nervous system (PNS)
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In the event that the blood pressure is increased because of any explanation, it is detected by the baroreceptor system
- The baroreceptor reflex invigorates is the part of the parasympathetic nervous system
- The PSNS causes reflation of veins, decreasing total peripheral resistance. It also decrease the heart rate
Sympathetic nervous system (SNS)
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Heart rate and blood volume are regulated by the interrelated activities of the sympathetic nervous system (SNS) and the renin-angiotensin-aldosterone system (RAAS)
- The SNS is improperly dynamic in obesity and <em>hypertension</em> and plays a causal or permissive role in all types of chronic hypertension
Codons are three base sequences that specify the addition of a single amino acid. How do eukaryotic and prokaryotic codons compare?<span>
Answer: Codons are a nearly universal language among all organisms</span>
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