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Q Concerning germ layers and the presence of coelom how are arthropods characterized?
Arthropods are triploblastic and coelomate beings (they have three germ layers).
Q. Considering the presence of segmentation (metameres) in their body to which other already studied phylum are arthropods proximal?
Considering their metameric feature arthropods are proximal to annelids that as well have segmented bodies. In the embryonic development of some arthropods there are fusions of metameres forming structures like, for instance, the cephalothorax of arachnids.
Who was Charles Darwin? Charles Darwin was an English naturalist born in 1809 and considered the father of the theory of evolution. At the end of the year 1831, before turning 23
Q. How be able to the excretory system of annelids be described? In each segment (metamere) of the being a pair of complete excretory structures known as metanephridium exists.
Do the genes of the X and Y chromosomes determine only sex characteristics? Moreover sex genes the sex chromosomes have also autosomal genes, genes that codify several proteins
Explain the Structure and Functions of Kidney You would have got a clear idea as to where the kidneys are situated. Yes, the kidneys are located in the posterior part of the ab
Compound leaf is the leaf in which the blade forms small leaflets. Compound leaves which have several small leaflets originating from the central axis are termed as pinnately comp
What is Class Crinoidea? This Class includes the sea lilies and the feather stars. What makes them different from the other Echinoderms is the placement of their mouth and anus
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Determine Water-soluble vitamins needs of school children and adolescents? The suggested requirements are given in Table 15.2 (ICMR 1990). Thiamine is computed as 0.5 mg/1000 K
Q. Show basic Classification of hypertension? Unlike many other diseases, hypertension develops insidiously (without symptoms). In 90% of hypertension cases, the cause is unkn
Q. What are some major differences of the vertebrate nervous systems comparing to invertebrates? In vertebrates the nervous system is well-characterized, having dorsal neural c
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