NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Zoology MCQs (Practice_Test 42 of 112)
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- Which one among the following is a mammal with least number of diploid set of chromosomes?
- Dog
- Rhinoceros
- Barking deer
- Red deer
- Who of the following has given the Yshaped two-channel energy flow model consisting of grazing and detritus food chains?
- Clements
- Hardin
- Odum
- Tansley
- Similar environment in different continents produce similar type of ecosystems. Species occupying similar ecological niche in such disjunct ecosystems are known as
- Ecological guilds
- Ecological equivalents
- Ecotypes
- Ecological indicators
- The grazing pathway of energy flow is relatively more important than the detritus pathway in
- grassland ecosystem
- tropical forest ecosystem
- pond ecosystem
- marine ecosystem
- A taxon facing an extremely high risk of extinction in the wild in the immediate future is regarded as
- critically endangered
- endangered
- vulnerable
- near threatened
- Consider the following characteristics:
- Loss of hair on the skin
- Loss of sweat glands
- Presence of thich blubber
- Presence of swim bladder
- In Cetacea, due to aquatic mode of life, which of the above are the adaptations that have taken place?
- 1,2 and 3 only
- 2,3 and 4 only
- 1,2 and 4 only
- 1,3 and 4 only
- The area over which an individual animal roams during the course of its usual daily wandering and in which it spends most of its time is called
- Nesting territory
- Home range
- Mating territory
- Feeding range
- Consider the following amino adds:
- Arginine
- Alanine
- Histidine
- Which of the above amino acids are polar in nature?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1,2 and 3
- In which one of the following is found a single eustachian opening in the middle of roof behind internal nares?
- Frog
- Lizard
- Pigeon
- Rabbit
- Consider the following statements:
- The eyeball of rabbit is moved in the orbit by four sets of muscles and the eyeball of frog is moved by three sets of muscles
- The pecten in the eye is more developed in diurnal birds than in nocturnal birds.
- Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
- The hormone cortisone is a
- carbohydrate
- fatty acid
- polypeptide
- steroid
- Which one of the following pairs is not correctly matched?
- Match Item 1: Pineal body
- Match Item 2: Dopamine
- Match Item 1: Leydig cells
- Match Item 2: Androgen
- Match Item 1: Intestine
- Match Item 2: Secretin
- Match Item 1: Neurohypophysis
- Match Item 2: Oxytocin
- In the eye of lizards, a vascular pigmented cushion like body arises from the blind spot region of retina and projects into vitreous humor. It is commonly called
- Organ of Jacobson
- Organ of Corti
- Conus papillaris
- Macula dense
- In which one of the following is found Foramen Pannizzae?
- Frog
- Lizard
- Pigeon
- Rabbit
- In the placenta of some animals, like cats and dogs, the villi are developed in the form of a belt or girdle like band around the middle of their blastocyst or chorionic sac, which is more or less elliptical in shape. Such placentae are called
- Zonary
- Diffuse
- Discoidal
- Cotyledonary