Which of the following animals is not viviparous?
Flying fox(bat)
Elephant
Platypus
Platypus
C.
Platypus
Mammals are broadly classified into two broad categories:
(i) Protheria are egg laying mammals
(ii) Theria are placental mammals, which can be further divided into Metatheria and Eutheria.
Platypus is a protheric mammal or oviparous whereas bats, elephant and whale belongs to Eutheria as they produce fully formed young ones.
The hilum is a scar on the
seed, where funicle was attached
fruit, where it was attached to pedicel
fruit, where style was present
fruit, where style was present
How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?
Five
Six
Eight
Eight
The movement of a gene from one linkage group to another is called
inversion
duplication
translocation
translocation
Which of the following characteristics is mainly responsible for diversification of insects on land?
Segmentation
Bilateral symmetry
Exoskeleton
Exoskeleton
Which of the following endoparasites of humans does show viviparity?
Ancylostoma duodenale
Enterobius vermicularis
Trichinella spiralis
Trichinella spiralis
The terga, sterna and pleura of cockroach body are joined by
cementing glue
muscular tissue
arthrodial membrane
arthrodial membrane
Nuclear envelope is derivative of
smooth endoplasmic reticulum
membrane of Golgi complex
microtubules
microtubules
