Recent questions tagged ch4

Regarding Cnidarian body forms : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding sponges : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding reproduction in sponges : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding sponges : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding canal system of sponges : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding Coelom : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding Coelom : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding Diploblastic & Triploblastic Organisation : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding symmetry in animals : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding symmetry in animals : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding organisation in animals : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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Regarding organisation in animals : Match the following and choose the most appropriate option:

asked Apr 2, 2014 by pady_1

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A current caring wire AB is placed near another long current carrying wire CD. If free to move AB will have D.

asked Mar 27, 2014 by meena.p

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Identify the procedure showm in the picture:

asked Mar 26, 2014 by pady_1

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Identify the procedure showm in the picture:

asked Mar 26, 2014 by pady_1

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Identify the picture:

asked Mar 26, 2014 by pady_1

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Identify the picture:

asked Mar 26, 2014 by pady_1

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Identify the picture:

asked Mar 26, 2014 by pady_1

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In artificial insemination (AI) technique: (i) the semen collected from the husband (ii) the semen collected from a healthy donor (iii) is artificially introduced into the ****** of the female (iv) is artificially introduced into the uterus of the female Regarding (i), (ii), (iii) and (iv) :

asked Mar 20, 2014 by pady_1

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GIFT: Transfer of an ovum collected from a donor (i) into the fallopian tube of another female (ii) who can produce one (iii) but can not provide suitable environment for fertilisation (iv) but can provide suitable environment for further development Regarding (i), (ii), (iii) and (iv) :

asked Mar 20, 2014 by pady_1

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ART: 1. The zygote or early embryos (with upto 8 blastomeres) could then be transferred into the fallopian tube(ZIFT) 2. Embryos with more than 8 blastomeres, into the uterus, to complete its further development.(IUT) 3. Embryos formed by in-vivo fertilisation (fusion of gametes within the female) also could be used for such transfer to assist those females who cannot conceive. Regarding 1,2 and 3 :

asked Mar 20, 2014 by pady_1

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In vitro fertilisation (IVF) : (i) also known as test tube baby programme (ii) ova from the wife/donor (female) and sperms from the husband/donor (male) are collected (iii) they are induced to form zygote (iv) under simulated conditions in the laboratory. Regarding (i), (ii), (iii) and (iv) :

asked Mar 20, 2014 by pady_1

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In ART : 1. In vitro fertilisation (IVF ) is fertilisation outside the body 2. It is done in almost similar conditions as that in the body. 3. IVF is followed by embryo transfer (ET) is one of such methods. Regarding 1,2 and 3 :

asked Mar 20, 2014 by pady_1

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1. Hepatitis–B and HIV can be transmitted from an infected mother to the foetus too. 2. Hepatitis B virus transmission from mother to unborn child is called vertical transmission. 3. Before semen donation for artificial insemination the screening of donor for HBV is not usually needed Regarding 1,2 and 3 :

asked Mar 20, 2014 by pady_1

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1. Hepatitis–B and HIV can be transmitted by sharing of injection needles, razors, etc. 2. HIV can be transmitted by using surgical instruments used on for such patients and used after disinfection. 3. Hepatitis–B and HIV can be transmitted by transfusion of blood of an infected person. Regarding 1,2 and 3 :

asked Mar 20, 2014 by pady_1

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MTP: 1. MTPs are considered relatively safe during the first trimester. 2. Second trimester abortions are much more riskier. 3. Majority of the MTPs are performed illegally by unqualified quacks which are usually safe. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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In tubectomy: 1. A small part of the fallopian tube is removed or tied up 2. It is done through a small incision in the abdomen or through ******. 3. This technique are least effective 4. But their reversibility is good. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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In vasectomy: 1. A small part of the vas deferens is removed or tied up 2. It is done through a small incision on the ******* 3. Its reversibility is very poor. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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1. Progestogens alone or in combination with estrogen can also be used by females as injections or implants under the skin. 2. Their mode of action is similar to that of pills 3. Their effective periods are short. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Regarding Oral Contraceptive pills: 1. Pills have to be taken daily for a period of 21 days starting preferably within the first five days of menstrual cycle. 2. After a gap of 7 days, it has to be repeated in the same pattern till contraconception is desired. 3. Menstruation occurs in between the 21 day course of tablet. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Intra Uterine Devices (IUDs) - copper releasing IUDs: (i) increase phagocytosis of sperms within the uterus (ii) the Cu ions released suppress sperm motility (iii) the Cu ions released suppress the fertilising capacity of sperms Regarding (i), (ii) and (iii):

asked Mar 20, 2014 by pady_1

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Class – Mammalia : 1. Sexes are separate 2. Fertilisation is internal. 3. They are always viviparous 4. Development is direct. Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Class – Mammalia : 1. Heart is four- chambered. 2. Respiration is by lungs. 3. They are poikilothermous. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Class – Mammalia : 1. The skin of mammals is unique in possessing hair. 2. External ears or pinnae are absent in most species. 3. Different types of teeth are present in the jaw. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Class – Aves : 1. Sexes are separate. 2. Fertilisation is external. 3. They are oviparous 4. Development is direct. Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Class – Aves : 1. Heart is completely four- chambered. 2. Respiration is by lungs. 3. Air sacs connected to lungs supplement respiration. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Class – Aves : 1. The characteristic features of Aves are the presence of feathers 2. Most of them can fly 3.Ostrich is one of the flightless birds. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Class – Reptilia : 1. Sexes are separate. 2. Fertilisation is internal. 3. They are oviparous 4. Development is direct. Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Class – Amphibia : 1. Sexes are separate. 2. Fertilisation is external. 3. They are viviparous 4. Development is direct. Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Class – Amphibia : 1. Alimentary canal, urinary and reproductive tracts open into a common chamber called cloaca 2. Cloaca opens to the exterior. 3. These are cold-blooded animals. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Class – Amphibia : 1. The amphibian skin is dry. 2. They do not have scales. 3. They don't have eyelids. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Class – Amphibia : 1. Most of them have two pairs of limbs. 2. Body is divisible into head and trunk. 3. Tail may be present in some. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Class – Osteichthyes : 1. Sexes are separate. 2. Fertilisation is usually internal. 3. They are mostly oviparous 4. Development is direct. Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Class – Osteichthyes : 1. Air bladder is present 2. Air bladder regulates buoyancy (if present in any aquatic organism). 3. Heart is two- chambered 4. Heart has one auricle and one ventricle. Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Class – Chondrichthyes : 1. Teeth are modified placoid scales 2. Teeth are directed forwards. 3. Their jaws are very powerful. 4. These animals are predaceous. Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Regarding Class – Chondrichthyes : 1. They are marine animals 2. They have streamlined body 3. They have cartilaginous exoskeleton Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Regarding Class – Cyclostomata : 1. Cyclostomes are marine 2. But they migrate to fresh water for spawning . 3. After spawning, they die within a few days. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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Regarding Class Cyclostomata : 1. They have paired fins 2. Their body is devoid of scales. 3. Cranium and vertebral column are bony. 4. Circulation is of closed type Regarding 1,2,3 and 4:

asked Mar 20, 2014 by pady_1

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Regarding Class – Cyclostomata : 1. They have an elongated body 2. They bear 6-15 pairs of gill slits. 3. Cyclostomes have a circular mouth without jaws Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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1. Agnatha includes Class Cyclostomata. 2. Tetrapoda includes Pisces, Amphibia, Reptilia, Aves and Mammals 3. Pisces includes Chondrichthyes and Osteichthyes. Regarding 1,2 and 3:

asked Mar 20, 2014 by pady_1

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