How many types of twins can be there? Explain each.
Which is the biggest cell?
Define what peculiar characteristic do the hippopotamus and tapir share?
Which is the ugliest of all mammals?
Which is the man like ape found in borneo and sumatra?
What does a skunk do when it is attacked?
Which cells in human body do not have any blood supply?
Which is the largest marsupial?
Which are the cats that have no tail?
valve guarding superior vena cava in embryonic stage
Why is triploblast more advanced than diploblast?
Explain how many species are there in mammals?
Which animal uses an ultrasonic sonar to detect its pray?
common characteristics of parrot, platybus and kangaroo
Discuss the ecological significance of Acoelomates in marine and freshwater environments.