Introduction to Reptiles:
Reptiles are first group of vertebrates to become completely adapted to life on land. There are 4 major groups of reptiles like: Snakes, lizards, crocodiles and turtles. Lizards and their close relatives, snakes, are leading reptiles today.
Features of Reptiles:
Name Reptile through which these animals are known, point to one of the major features of typical members of the group, their crawling method of locomotion. They are lowest vertebrates that are really terrestrial and as class they are neither well adapted for walking nor for running. The body is covered with scales that are, though, very different from those of fishes: they are evolved only from outer layers of skin, having relation with blood vessels and nerves. Whole skin is distinguished by being dry and devoid of glands. They are poikilothermic and many of them have improperly 4 chambered heart.
Reptiles have turn into independent of water because of growth of embryonic membranes. Embryo always lies in fluid-filled sac called as amnion. Allantois arises as the outgrowth from hinder part of gut and serves as receptacle for storage of embryonic urine. Part of allantois turns into closely applied to shell for respiration. Gills are absent and lungs form respiratory organs.
Lizard:
Lizard is the characteristic example of reptilian. They are characteristically dry-land animals, loving sun and its heat. They are extremely common reptiles many of them are 4-legged animals and are able to move very actively. They are generally rather small and slender creatures. Common garden lizard has very long tail.
Ecological Adaptation:
Different kinds of Lizards:
Ordinary wall lizards or Geckos are prepared with vacuum -cupped toes that allow them to hunt insects along vertical walls and ceilings of rooms. The extremely exciting protective feature, have in some of the lizards, is power to break off the tail automatically. They contain strange type of joint between two of the caudal vertebrae that allows them in emergency to break off tail. Part of tail therefore sacrificed continues for some time to move about, therefore tending to divert attention of pursuing enemy and thereby providing a possibility to lizard to escape. It can develop the new tail in due course of time. The power of automatically breaking off some parts of body is known as autonomy.
Other adaptive characteristics are given below:
i) They are cold blooded animals.
ii) They have well developed tongue that can be protruted and retracted Quickly.
iii) Its jaws contain teeth of similar kind embedded in sockets.
iv) It generally contains paired fore and hind limbs each with 5 toes ending in claws.
v) It contains inner and middle ears.
vi) It contains skin which is covered with scales.
vii) It performs gaseous exchange by its lungs.
viii) Fertilization is internal. Females lay large fertilized eggs in land. Even aquatic reptiles return to land to lay eggs.
Tutorsglobe: A way to secure high grade in your curriculum (Online Tutoring)
Expand your confidence, grow study skills and improve your grades.
Since 2009, Tutorsglobe has proactively helped millions of students to get better grades in school, college or university and score well in competitive tests with live, one-on-one online tutoring.
Using an advanced developed tutoring system providing little or no wait time, the students are connected on-demand with a tutor at www.tutorsglobe.com. Students work one-on-one, in real-time with a tutor, communicating and studying using a virtual whiteboard technology. Scientific and mathematical notation, symbols, geometric figures, graphing and freehand drawing can be rendered quickly and easily in the advanced whiteboard.
Free to know our price and packages for online biology tutoring. Chat with us or submit request at [email protected]
Every species of an organism has a particular number of chromosomes in the somatic cells of it. These chromosomes are initiated in pairs.
tutorsglobe.com plasmodium and malaria assignment help-homework help by online protozoan microbiology tutors
tutorsglobe.com parts of a flowering plant assignment help-homework help by online root-stem and leaf tutors
tutorsglobe.com thrombosis assignment help-homework help by online blood cells tutors
tutorsglobe.com explanation of marginal utility assignment help-homework help by online marginal utility tutors
tutorsglobe.com extraction from copper pyrites assignment help-homework help by online occurrence and principles of extraction of copper tutors
concept of costs with the respective concepts of economies of scale, dis economies of scale, economies of scope, diseconomies of scope, direct cost and opportunity cost, Activity based costing, managerial economics, answering questions to managerial economics by tutors.
tutorsglobe.com marginal utility and mrs assignment help-homework help by online choices and preferences of consumer tutors
Theory and lecture notes of Steady-State Response of Electrodes all along with the key concepts of Electrode Electrical Model, Frequency Response and Amplifier Input Impedance Requirements. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Steady-State Response of Electrodes.
Half coil winding is that winding where the number of coils per phase is equivalent to half the number of poles in the machines
tutorsglobe.com saving water assignment help-homework help by online fresh water crisis and management tutors
tutorsglobe.com anemophily assignment help-homework help by online agents of pollination tutors
Gnathostomata tutorial all along with the key concepts of Features of Superclass Gnathostomata, Characteristics of Class Placodermi, Cartilaginous fishes and Features of Class Osteichthyes
tutorsglobe.com hiv assignment help-homework help by online medical parasitology tutors
www.tutorsglobe.com offers charge distribution in molecules homework help, charge distribution in molecules assignment help, online tutoring assistance, organic chemistry solutions by online qualified tutor's help.
1944624
Questions Asked
3689
Tutors
1451962
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!