Which of the following is placental mammal?
(1) Bandicoot
(2) Numbat
(3) Wombat
(4) Bobcat
Which of the following statements is not true if we consider postulates of Darwinian theory of evolution?
(1) Evolution by natural selection would have started when cellular forms of life with similarities in metabolic capabilities originated on Earth
(2) The rate of appearance of new forms is linked to the life cycle or the life span.
(3) Fitness is based on characteristics which are inherited.
(4) Adaptive ability is inherited.
If more individuals acquire peripheral character value at both the ends of the distribution curve; in such case natural selection has resulted in
(1) Stabilization
(2) Directional
(3) Disruption
(4) May be B or C depending upon population parameters
The mechanism of non cellular aggregates of giant macromolecules to cell with membranous envelop is
(1) Natural selection
(2) Not known
(3) Mutation
(4) Recombination
The flourishing period of progymnosperm is
(1) Devonian
(2) Silurian
(3) Cretaceous
(4) Permian
The flourishing period of seed ferns is
(1) Jurassic
(2) Devonian
(3) Carboniferous
(4) Triassic
Gnetales evolved from
(1) Psilophyton
(2) Rhynia type plants
(3) Tracheophyte ancestors
(4) Chlorophyte ancestors
Sauropsids gave rise to
(1) Turtles
(2) Mammals
(3) Gnetales
(4) Ginkgo's
Which of the following is not true?
(1) Small sized reptiles of dinosaurs of that era still exist today.
(2) Tyrannosaurs rex was about 20 feet in height and had hugesome dagger like teeth.
(3) Dinosaur extinct, a possible reason may be most of them has evolved into birds
(4) Giant ferns fell to form coal deposits very fast
Which of the following feature is not of Ramapithecus?
(1) Hairy, walked like gorillas and chimpanzees
(2) Existed 15mya
(3) Ramapithecus was more man like
(4) After its extinction Dryopithecus came into picture.