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Using examples of invertebrate nervous systems how can the process of evolutionary cephalization be described?
Considering the instance of invertebrates it is observed that evolution makes the enhancing of the complexity of the organisms to be accompanied by convergence of nervous cells to special structures for controlling and commanding: the ganglia and the brain. In easy invertebrates, like cnidarians, the nervous cells are not concentrated but they are found dispersed in the body. In platyhelminthes a starting of cephalization with the anterior ganglion concentrating neurons is already verified. In annelids and arthropods the existence of a cerebral ganglion is evident. In cephalopod molluscs the cephalization is even big and the brain commands the nervous system.
Define salient modifiable factors which affect birth weight? The following are the salient modifiable factors which affect birth weight and gestation adversely: Iron deficiency
Minerals :- Magnesium Food Source Whole grains, nuts, legumes, green leafy vegetables Nutritional Functional role Essential nutrient: Deficiency is rare Co
Amphibian frog embryo
Isolation of dna fragments bound strongly with protein 1. Through pcr Pcr permits isolation of dna fragments from genomic dna through selective amplification of a spe
Problem 1: Which are the best procedure to adverse events of a given marketed Drug product? Mention methodology / procedure to detect adverse events of a given marketed pro
Simple diffusion Only comparatively small uncharged or hydrophobic molecules (H2O, O2, and CO2, other gases, urea and ethanol) cross the lipid bilayer through simple
Define Chromium Toxicity? Trivalent chromium, the form of chromium found in foods and supplements, is least toxic. Oral supplements upto 800 to 1000 mcg per day appear to be sa
Blastulation Formation of blastula from morula is called as blastulation. During early cleavage the blastomere maintain spherical shape and mulberry like, this stage of emb
Glucose-1-phosphate to Glycogen The conversion of glucose-1-phosphate to glycogen is through UDPG and glycogen synthase. We shall learn about this later in section under g
Which is the brain region responsible for the coordination and equilibrium of the body? In the central nervous system the cerebellum is the main controller of the motor coordin
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