Explain the following terms :
i)Bilateral symmetry
ii)Triploblastic animals
iii)Open circulatory system
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1 a basic body plan in which the left and right sides of the organism can be divided into approximate mirror images of each other along the midline
2. Having body tissues derived from three germ layers, the endoderm, mesoderm, and ectoderm, seen in all multicellular animals except certain invertebrates such as the cnidarians and sponges. Origin of triploblastic.
3 Open circulatory systems (evolved in crustaceans, insects, mollusks and other invertebrates) pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells. Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
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Secondary SchoolBiology 13+7 pts
Explain the following terms:
(i) Bilateral symmetry, (ii) Triploblastic animals and (iii) Open circulatory system.
Report by BrainlyHelper 09.10.2017
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Subhampradhan592 · Ambitious
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AMAYTRIPATHI
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hii frd here is ur answer
1) bilateral symmetry means for a body which can be cut into two equal halves is called as bilateral symmetry. example human----if we cut from the middle of the humans from the top to end then it can be obtained into two equal halves so the humans are also bilateral symmetrical.
2) triploblastic animals are means for the animal that has three layers in embryonic phase. and that three layers are ectoderm endoderm and mesoderm.
3) the open circulatory system means for the circulatory system where the bloods are not flow in the blood vessels means the blood is flowing openly.