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q how is excretion done in amphibiansadult amphibians have kidneys that filter blood nitrogen waste is excreted as urea so amphibians are ureotelic
q how different is the amphibian heart from the fish heartthe fish heart has only two chambers a ventricle and an atrium and the blood that comes to
q how is respiration performed by the larva of amphibiansthe larva of amphibians has exclusively branchial respiration this is one of the reasons why
q do amphibians have direct developmentin amphibians the embryonic development is indirect there is a larval stageq how different are the respiration
q what are the amphibian features that make them dependent on water to survivepermeable skinexternal fecundation body subject to dehydration larval
q which is the chordate class considered an evidence of the transition of the vertebrates from the aquatic to the dry land environmentthe amphibians
q fish identity card how are fishes characterized according to examples of representing beings skin basic morphology circulation nitrogen waste
q how different are fecundation in chondrichthyes and in osteichthyesin chondrichthyes fecundation is internal by resources of copulation in
q what are the lateral lines of fishesthe lateral lines of bony fishes are sense organs that extend along both sides of the animal body they make
q how is excretion done in fishesfishes have a pair of kidneys that filtrate the blood bony fishes excrete nitrogen as ammonia nh3 they are
q do fishes present an closed or open circulatory system how many chambers does a fish heart have how does blood flow throughout the fish bodyas in
q how do fishes do gas exchangefishes breath through gills branchiae or gills are highly vascularized organs specialized in gas exchange under water
q how does the swim bladder of fishes work allowing fishes to control their depth under waterfrom hydrostatics it is known that an object does not
q how different are the swimming strategies in chondrichthyes and in osteichthyes why do sharks need to agitate their body to swim while bony fishes
q what are the major features of fishes associated to the habitat where they livefishes are all aquatic animals and thus they have a hydrodynamic
q from which features do osteichthyes and condrichthyes get these nameschondros means cartilage ictis means fish both from the greek the name
q what are the two major classes into which fishes are dividedans fishes are divided into two major classes osteichthyes bony fishes tuna sardines
q chordate identity card how are they characterized according to examples of representing beings type of symmetry basic morphology germ layers and
q define pacinian corpusculespacinian corpuscules are an example of sensory receptors scattered deep in the subcutaneous tissue underlying skin or in
q describe sensory receptorsreceptor organs can detect external or internal stimuli they can be classified according to the stimulus to which they
q what is the use of adrenergic receptoradrenergic receptors are also subdivided into 2 major categories alpha alpha - or- beta betain general when
q what do you mean by neurotransmitters- nicotinic receptors nicotine mimics the effects of ach here found at nm-junction ans ganglions in general
q nervous system control of blood pressuremost nervous controls are achieved via involuntary reflex arcs involving pressoreceptors the vasomotor
q show the regulation of blood pressurenervous system control of bpmaintains primarily an adequate systemic bp and alters blood distribution in body
q what functions regulates by hypothalamushypothalamus - main visceral control center of the body yet small in size central to virtually all