[DOC] [TLE] Extraordinary Blood Circulation in Crocodiles - The Fountain ... [PAR] Crocodiles are bestowed with a special heart anatomy different to other reptiles like lizards, tortoises, and snakes.
 ... Because there is only one ventricle to receive and combine oxygenated and deoxygenated blood, a mixture of less oxygenated blood is pumped to their body. [DOC] [TLE] Types of Circulatory Systems in Animals - Boundless [PAR] Describe how circulation differs between fish, amphibians, reptiles, birds, and 
mammals ... Amphibians are unique in that they have a third circuit that brings ... 
and crocodiles) are the most primitive animals to exhibit a four-chambered heart. 
... Together, these adaptations have made crocodiles and alligators one of the 
most... [DOC] [TLE] The Vertebrate Animal Heart: Unevolvable, whether Primitive or ... [PAR] Crocodiles are the one reptilian exception, as they have 4 chambers (2 atria, 2 
ventricles). ... different than the amphibian/reptile/bird/mammal heart (figures 1b 
and c). ... 3 and 4 chambered hearts have a pulmonary circuit (pathways taking 
blood ... 1) an organ for enriching the hemophlegm (blood) with oxygen (lungs/
gills),... [DOC] [TLE] Crocodilia - Wikipedia [PAR] The Crocodilia (or Crocodylia) are an order of mostly large, predatory, 
semiaquatic reptiles. ... They have a four-chambered heart and, somewhat like 
birds, a unidirectional looping .... the belly and most of the tail being held off the 
ground, is unique among living reptiles. .... Various functions for these have been 
suggested. [DOC] [TLE] Cardiovascular System: The Heart and Vessels of Mammals, Birds ... [PAR] The cardiovascular systems of mammals, birds, amphibians, reptiles, and fish are 
all ... These main blood vessels function to transport blood through the entire 
body and ... (The crocodile is sometimes said to have a four-chambered heart. ... 
of true heart  a two-chambered organ composed of one atrium and one ventricle
. [DOC] [TLE] Reptile Structure and Function ( Read ) | Biology | CK-12 Foundation [PAR] Dec 11, 2015 ... Most reptiles have a three-chamber heart that has two atria and one partially ... 
Crocodiles have a completely divided ventricle - they have a four-chambered 
heart just like birds ... and crocodiles can go several days or weeks between 
meals. .... These sense organs are known as dermal pressure receptors. [DOC] [TLE] Hearts [PAR] Reptiles and amphibians generally have three-chambered hearts. Mammals and 
birds have four-chambered hearts, with the four chambers arranged ... Many 
researchers have addressed elements of the question, but rather than 
addressing these ... The lineage leading to crocodiles evolved a four-chambered 
heart along a... [DOC] [TLE] What Fossils Tell Us [PAR] Scattered among errors so elementary that grade-school students could correct 
them ... glands, so it is wrong to claim either of these are "completely new organs.
" More significantly, mammals are not "transformed" from reptiles: they share a 
common ... Mammals and birds have four-chambered hearts, with the four 
chambers... [DOC] [TLE] Reptiles | about animals [PAR] Nov 15, 2015 ... Reptiles have evolved features like infrared heat-sensitive senses, a second 
smelling organ (Jacobson's organ) and some unique defensive strategies. ... An 
explanation for their survival of these climatic changes could be their ability .... as 
they have only one cardiac chamber (except crocodiles who have a... [DOC] [TLE] Reptiles & Amphibians - Home Science Tools [PAR] Amphibians and reptiles are also vertebrates: they have a backbone. ... All 
reptiles and amphibians, except crocodilians, have three-chambered ... These 
huge land turtles can weigh up to 400-500 pounds and can live for .... Each 
species either has smooth scales or rougher keeled ones, with a unique pattern 
of scales and... [DOC] [TLE] The Physiological Evolution Of The Crocodile Essay Sample ... [PAR] These species resembled one another in many physiological features, for ... The 
internal organs of the crocodiles are just as unique and specialized as ... They 
have a four-chambered heart and two ventricles, an unusual trait ... a

Question: Crocodiles are unique among reptiles in that they have 4-chambered ones of these organs
Answer: the heart