Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution.
I. Lower groups of organisms have simpler body design.
II. Asexual reproduction is common in lower groups.
III. Asexual reproduction is common in higher groups of organisms.
IV. The high incidence of sexual reproduction in angiosperms and vertebrates.
Choose the correct answer from the options given below.
I and III
I and III
II and IV
II and III
Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because
sexual reproduction is a lengthy process
gametes of parents have qualitatively different genetic composition
genetic material comes from parents of two different species
greater amount of DNA is involved in sexual reproduction
Choose the correct statement from amongst the following.
Dioecious (hermaphrodite) organisms are seen only in animals.
Dioecious organisms are seen only in plants.
Dioecious organisms are seen in both plants and animals.
Dioecious organisms are seen only in vertebrates.
There is no natural death in single celled organisms like Amoeba and bacteria because
they can'not reproduce sexually
they reproduce by binary fission
parental body is distributed among the offspring
they are microscopic
There are various types of reproduction. The type of reproduction adopted by an organism depends on
the habitat and morphology of the organism
morphology of the organism
morphology and physiology of the organism
the organism's habitat, physiology and genetic makeup