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divide the chapters of 11th and 12th as botany and zoology ? please !!!!!!!!!!!!
differentiate between divergent evolution and convergent evolution.
is CBSE datesheet for class 12 exams 2014 declared????
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]
give a brief account of human evolution.
explain examples of homologous and analogous organs.
Define saltation and speciation with examples?
please explain the Branching Descent of darwin's theory.
what do you mean by anthropogenic action?
What is Protobiogenesis?
plz define- branching descent....
what does cc mean in terms of brain capacities?for example 900 cc in homo erectus plzzz reply fasttt plzzz
what r examples of homologous organs
can we call human evolution as adaptive radiation.
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.
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?
What is the ratio of water,methane and ammonia in the Miller-Urey Experiment?
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 are protobionts????????
WHAT IS MARSUPIAL RADIATION ???
can you please explain hardy- weinberg principle in a simplified way.
what is meant by biofortification . give me its importance ?
can u explain the first diagram showing evolution of plants?
what are coacervates?list characterisitc of coacervates.
who came first,the chicken or the egg?
What is the major difference between ramapithecus and dryopithecus?
Why is it that a baby chimpanzee skull is more similar took human skull than that of the adult chimpanzee
name one fish like reptile that evolved from land reptile about 200 million years ago
experiment by louis pasteur
How are heart and brain among vertebrates homologous organs? Please answer.
WHAT IS REDUCING ATMOSPHERE?
what is industrialisation?
________ is a connecting link between cartilaginous and bony fishes.
Name the common ancestor of man and great ape?
Urgent...!!! Do we hv to learn the evolution of plant forms through geological period(Fig. 7.9) and Representatory revolutionary history of vertebrates through geological periods(Fig.7.10) ..???
explain divergent evolution with an example of plants?
if lamarck concept of inheritance of acquried character is true. in the year 1890 august performed an experiment on his theory by cutting the tail of rats for nearly
20 generation but could not find a tailess rat. WHY?
pick out the ancestral line of cycads from the list given below
and also explain how???
How can you determine the age of a living tree?
pls explain me natural selection with an example.
define carrying capacity?
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
DESCRIBE DE VERRIES MUTATION THEORY?
name the primates that lived about 15 mya
list the characterisics features also
Divergent evolution leads to homologous structures. can u explain this statement with the help of an example?
URGENT REPLY NEEDED!!
what is genetic equilibrium?and what is its relation with hardy-weinberg priciple?
what do u mean by specks
what are lobefins and founder's effect?
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