1. Arrange the following time periods from oldest to youngest.Ceno.pdf

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1. Arrange the following time periods from oldest to youngest. Cenozoic, Hadean, Ordovician, Triassic.. 2. Which represents a longer period of time? a.From the first appearance of vertebrates until the extinction of the dinosaurs b.From the extinction of the dinosaurs until the appearance of Homo sapiens a.From the first appearance of vertebrates until the extinction of the dinosaurs b.From the extinction of the dinosaurs until the appearance of Homo sapiens Solution 1. ANS: Time periods from oldest to youngest Cenozoic - 65 0 Million years (Present Time) Youngest Triassic - 213 248 Million years Ordovician - 435 492 Million years Hadean - 4500 – 4000 Million years oldest 2. ANS: a. From the first appearance of vertebrates until the extinction of the dinosaurs. Explanation: From the first appearance of vertebrates until the extinction of the dinosaurs took several 100’s of million years. From the (Jurassic time) dinosaur’s time to until the appearance of Homo sapiens took just 200 million years only..

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In line with generally accepted theories of evolution, Dinosaur extinction is currently believed to be due to climate change due to various causes. However this is not correct, being inconsistent with known facts. There are only two possibilities. Either Dinosaurs evolved to their extinction or evolved to some other phyletic lines or species with which ancestor – descendent relationship can’t be presently demonstrated. Author: Dr Mahesh C. Jain is a practicing medical doctor and has written the book “Encounter of Science with Philosophy – A synthetic view”. The book begins with first chapter devoted to scientifically valid concept of God and then explains cosmic phenomena right from origin of nature and universe up to origin of life and evolution of man. The book includes several chapters devoted to auxiliary concepts and social sciences as corollaries to the concept of God. This is the only book which deals with origin of nature and universe from null or Zero or nothing. Chapter 30 of the book is about Evolution of Life wherein author has worked out a new theory about evolution of life. Visit:http:// www.sciencengod.com http://www.sciencengod.com/clipboard.htm

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Explain what factors underlying the signaling specificity and the specificity of the cellular response Solution Factors effecting on signalling specificity: Cell signalling is a very important process for basic activity of different cells and their communication between cells to perform any task. for basic growth and development it has a very important role. If there are error in signal processing and trunsduction then it can be responsible for different diseases, cancer, autoimmunity, diabetis etc. signalling can be extra cellular or it can be intracellular. Now transcriptional regulation like cyclic AMP is an important factor for cell signalling. now there are different factor effecting signal process which are: Intracrine signals that produce from a target cell which can stay within the target cells. Autocrine signals means which are producing by the target cell and also secreted, but also affect the target cell ownself via receptors. juxtacrine signals transmitted along cell memebrane via protein and lipid chain. Paracrine signals generally target different cells in the vicinity and those are called emitting cells. Now Endocrine signals target generally distant cells, it is so much important because it produces hormones and that hormones transfer into the body system through blood. cell- cell concact is also an important factor for cell signalling process. there are also gap junction that connect theit cytoplasomic connection. and these are all very much specific for perfect and identical cellular response..

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Create the Version class - data members (integers) - major - minor - service pack - setter for each data member - allow for cascading calls - getter for each data member - use PLP and handle constant objects - use the class in main() - prompt the user to enter major, minor, and service pack release numbers - use cascading member function calls - assign all data members in one statement using setters - display the version by calling getter for each data member, have the getter just return the value of the data member Example: Major: 10 Minor: 1 Service Pack: 1 Solution package automativ; import java.util.*; public class version { int major; int minor; int serviepack; version(int major,int minor,int serviepack){ setmajor(major); setminor(minor); setserviepack(serviepack); } private void setserviepack(int serviepack) { this.serviepack=serviepack; } private void setminor(int minor) { this.minor=minor; } private void setmajor(int major) { this.major=major; } public int getmajor(){ return major; } public int getminor(){ return minor; } public int getserviepack(){ return serviepack; } } main class: package automativ; import java.util.*; public class mymainever { public static void main(String[] args) { Scanner sc=new Scanner(System.in); System.out.println(\"enter major:\"); int major=sc.nextInt(); System.out.println(\"enter minor:\"); int minor=sc.nextInt(); System.out.println(\"enter servicepack:\"); int servicepack=sc.nextInt(); version v=new version(major,minor,servicepack); int majorf=v.getmajor(); int minorf=v.getminor(); int servicepackf=v.getserviepack(); System.out.println(\"major is:\"+majorf); System.out.println(\"minor is:\"+minorf); System.out.println(\"servicepack is\"+servicepack); } } output: enter major: 10 enter minor: 1 enter servicepack: 1 major is:10 minor is:1 servicepack is1.

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