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divide the chapters of 11th and 12th as botany and zoology ? please !!!!!!!!!!!!
differentiate between divergent evolution and convergent evolution.
According to Hardy- Weinberg's Principle. , the allele frequency of a population remains constant. How do you interpret the change of frequency of alleles in a population?
is CBSE datesheet for class 12 exams 2014 declared????
give a brief account of human evolution.
Ques- branching descent and natural selection are the two key concepts of darwins theory of evolution.
explain each concept with the help of suitable example. [CBSE 2011, 3 MARKS]
Write your observations on the variations seen in the Darwin's finches. How did Darwin explain the existence of different varieties of finches on Galapagos Islands?
coupled to enhance reproductive success ,natural selection makes it look like different population
explain examples of homologous and analogous organs.
Define saltation and speciation with examples?
please explain the Branching Descent of darwin's theory.
Describe the three different ways by which natural selection can effect the frquency of a heritable trait in a population
what do you mean by anthropogenic action?
plz explain :
When more than one adaptive radiation appeared to have occured in an isolated geographical area (representing diffwerent habitats) , one can call this convergent evolution.
plz define- branching descent....
what r examples of homologous organs
Q. Who created coacervates artificially in laboratory for the first time? Enumerate their characteristics. What do they confirm about the origin of life?
Plz answer this question.
What is Protobiogenesis?
wat is transforming principle
can we call human evolution as adaptive radiation.
What is the ratio of water,methane and ammonia in the Miller-Urey Experiment?
what is anthropogenic action?
Q Write the oparin and haldane's hypothesis about the orgin of life on earth. How does meteoritic analysis favour this hypothesis.
how do darwin's finches illustrate adaptive radiation?
Q Anthropogenic actions have caused evolution of species. Explain with the help of two examples?
write the order in which neanderthal homohabilous and homoeractus appeared on the earth
WHAT IS MARSUPIAL RADIATION ???
what is meant by biofortification . give me its importance ?
can you please explain hardy- weinberg principle in a simplified way.
who came first,the chicken or the egg?
The rate of appearance f new life forms is linked with the life span of organism.Explain?
what are coacervates?list characterisitc of coacervates.
name one fish like reptile that evolved from land reptile about 200 million years ago
What is the major difference between ramapithecus and dryopithecus?
experiment by louis pasteur
what is industrialisation?
distinguish between darwin's variations and hugo devaris with regard for evolution
Name the common ancestor of man and great ape?
natural selection operates when nature selection for fitness. explain??? the rate of appearance of new forms is linked to the life span of an organism. explain with the help of suitable example.
explain divergent evolution with an example of plants?
How are heart and brain among vertebrates homologous organs? Please answer.
pls explain me natural selection with an example.
Give reason for the existence of lemur and spotted cuscus sharing the same habitat.
pick out the ancestral line of cycads from the list given below
and also explain how???
Its said that we human beings are evolved from monkeys and apes....so it means that our ancestors were monkeys and apes...so i havent understood that if they wre our ancestors why do they still exist in earth??m just confused because of this...when we evolved from them to human beings then why not they?i mean according to evolution even they should have evolved......please help me out with this
________ is a connecting link between cartilaginous and bony fishes.
DESCRIBE DE VERRIES MUTATION THEORY?
name the primates that lived about 15 mya
list the characterisics features also
define bacterial transformation who demostrated it experimentally and hwo?
URGENT REPLY NEEDED!!
what is genetic equilibrium?and what is its relation with hardy-weinberg priciple?
fitnessis the end result of the ability to adapt and get selected by Nature. Explain with suitable example
How can you determine the age of a living tree?
what is founder effect?
Write a note on Origin Of Life.
explain branching descent and its relation with Darwin's Theory
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