Which one of the following characteristics is common both in humans and adult frogs? (a) Four chambered heart (b) Internal fertilisation (c) Nucleated RBCs (d) Ureotelic mode of excretion

Which one of the following characteristics is
common both in humans and adult frogs?
(a) Four chambered heart
(b) Internal fertilisation
(c) Nucleated RBCs
(d) Ureotelic mode of excretion
by

1 Answer

Answer :

(c) Nucleated RBCs
by

Related questions

Consider the following four statements (A–D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F). Statements: A. On dry land it would die due to lack of O2 if its mouth is forcibly kept closed for a few days. B. It has four-chambered heart. C. On dry land it turns uricotelic from ureotelic. D. Its life-history is carried out in pond water. A B C D (a) T F F T (b) T T F F (c) F F T T (d) F T T F

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Last Answer : (a) T F F T

Frogs differ from humans in possessing (a) paired cerebral hemispheres (b) hepatic portal system (c) nucleated red blood cells (d) thyroid as well as parathyroid

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Last Answer : (c) nucleated red blood cells

RBCs are nucleated in

Description : RBCs are nucleated in

Last Answer : RBCs are nucleated in A. Man B. Rabbit C. Rat D. Frog

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature? (1) They do not need to reproduce. (2) They are somatic cells. (3) They do not metabolise. (4) All their internal space is available for oxygen transport. (a) Only (1) (b) (1), (3) and (4) (c) (2) and (3) (d) Only (4)

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Which class of animals has four-chambered heart ?

Description : Which class of animals has four-chambered heart ?

Last Answer : The heart of mammals has four chambers.

In which of the following reptiles, a four- chambered heart is present ?

Description : In which of the following reptiles, a four- chambered heart is present ?

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Is there any relationship between warm blooded conditions and four chambered heart?

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Last Answer : D. Crocodile (Answer)

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Last Answer : (b) presence of diaphragm

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Which one of the following categories of animals, is correctly described with no single exception in it? (a) All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal). (b) All bony fishes have four pairs of gills and an operculum on each side. (c) All sponges are marine and have collared cells. (d) All mammals are viviparous and possess diaphragm for breathing.

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Last Answer : (b) nucleated and with haemoglobin

Compared to those of humans, the erythrocytes in frog are (1) Nucleated and without haemoglobin (2) Without nucleus but with haemoglobin (3) Nucleated and with haemoglobin (4) Very much smaller and fewer

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Description : Three chambered heart is found in `:-`

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Last Answer : Pisces.

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Which one of the following groups of animals is correctly matched with its characteristic feature without any exception? (a) Reptilia : possess 3-chambered heart with an incompletely divided ventricle (b) Chordata : possess a mouth with an upper and a lower jaw (c) Chondrichthyes : possess cartilaginous endo- skeleton (d) Mammalia : give birth to young ones

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Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them? (a) Pteropus and - Viviparity Ornithorhynchus (b) Garden lizard and - Three chambered crocodile heart (c) Ascaris and - Metameric Ancylostoma segmentation (d) Sea horse and - Cold blooded flying fish (poikilothermal)

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Last Answer : (d) Sea horse and - Cold blooded flying fish

Which one of the following groups of animals is correctly matched with its characteristic feature without any exception? (a) Reptilia : possess 3-chambered heart with an incompletely divided ventricle (b) Chordata : possess a mouth with an upper and a lower jaw (c) Chondrichthyes : possess cartilaginous endo- skeleton (d) Mammalia : give birth to young ones

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Last Answer : (c) Chondrichthyes : possess cartilaginous endo- skeleton

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them? (a) Pteropus and - Viviparity Ornithorhynchus (b) Garden lizard and - Three chambered crocodile heart (c) Ascaris and - Metameric Ancylostoma segmentation (d) Sea horse and - Cold blooded flying fish (poikilothermal)

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Last Answer : (d) Sea horse and - Cold blooded flying fish (poikilothermal)

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Last Answer : (b) All cyclostomes do not possess jaws and paired fins.

Which of the following statement is true about RBCs in humans?

Description : Which of the following statement is true about RBCs in humans?

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Last Answer : (a) They carry about 20-25 percent of CO2.

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Last Answer : Because frogs eggs are released into the environment (wherepredators will eat most of them) while human are developedinternally (where they are safe).

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Description : What are the similarities between humans and frogs eustachian tube?

Last Answer : Need answer

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Explain the events that occur during fertilisation of an ovum in humans. How is it that only one sperm enters the OVUm? -Biology

Description : Explain the events that occur during fertilisation of an ovum in humans. How is it that only one sperm enters the OVUm? -Biology

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Where does fertilisation occur in humans? Explain the events that occur during this process. -Biology

Description : Where does fertilisation occur in humans? Explain the events that occur during this process. -Biology

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How is the entry of only one sperm ensured into an ovum during fertilisation in humans? -Biology

Description : How is the entry of only one sperm ensured into an ovum during fertilisation in humans? -Biology

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The duration 19-21 days refers to: (1) incubation period of hen's egg (2) average life-span of a red blood cell in humans (3) the period of menstrual cycle soon after menstruation, during which fertilisation is most likely to occur (4) period of completion of one schizogony cycle of malarial parasite inside a red blood cell

Description : The duration 19-21 days refers to: (1) incubation period of hen's egg (2) average life-span of a red blood cell in humans (3) the period of menstrual cycle soon after menstruation, during ... to occur (4) period of completion of one schizogony cycle of malarial parasite inside a red blood cell

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Cri-du-chat syndrome in humans is caused by the (a) trisomy of 21st chromosome (b) fertilisation of an XX egg by a normal Y-bearing sperm (c) loss of half of the short arm of chromosome 5 (d) loss of half of the long arm of chromosome 5.

Description : Cri-du-chat syndrome in humans is caused by the (a) trisomy of 21st chromosome (b) fertilisation of an XX egg by a normal Y-bearing sperm (c) loss of half of the short arm of chromosome 5 (d) loss of half of the long arm of chromosome 5.

Last Answer : (c) loss of half of the short arm of chromosome 5

What happens during fertilisation in humans after many sperms reach close to the ovum? (a) Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida. (b) All sperms except the one nearest to the ovum lose their tails. (c) Cells of corona radiata trap all the sperms except one. (d) Only two sperms nearest the ovum penetrate zona pellucida.

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Fertilisation in humans is practically feasible only if (a) the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the cervix (b) the sperms are transported into cervix within 48 hrs of release of ovum in uterus (c) the sperms are transported into vagina just after the release of ovum in fallopian tube (d) the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube.

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Last Answer : (d) the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube.

The duration 19-21 days refers to: (1) incubation period of hen’s egg (2) average life-span of a red blood cell in humans (3) the period of menstrual cycle soon after menstruation, during which fertilisation is most likely to occur (4) period of completion of one schizogony cycle of malarial parasite inside a red blood cell

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Last Answer : the period of menstrual cycle soon after menstruation, during which fertilisation is most likely to occur

Ureotelic animals are those in which the main nitrogenous waster product is

Description : Ureotelic animals are those in which the main nitrogenous waster product is

Last Answer : Ureotelic animals are those in which the main nitrogenous waster product is A. Amino acids B. Urea C. Uric acid D. Ammonia

In human and other ureotelic organisms, the end product of amino acid nitrogen metabolism: (A) Bile acids (B) Ketone bodies (C) Urea (D) Barium sulphate

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Last Answer : Answer : C

In ureotelic animals, urea is formed by (a) Krebs’ cycle (b) EM pathway (c) Ornithine cycle (d) Cori cycle.

Description : In ureotelic animals, urea is formed by (a) Krebs’ cycle (b) EM pathway (c) Ornithine cycle (d) Cori cycle.

Last Answer : (c) Ornithine cycle

Earthworms are (a) ammonotelic when plenty of water is available (b) ureotelic when plenty of water is available (c) uricotelic when plenty of water is available (d) uricotelic under conditions of water scarcity

Description : Earthworms are (a) ammonotelic when plenty of water is available (b) ureotelic when plenty of water is available (c) uricotelic when plenty of water is available (d) uricotelic under conditions of water scarcity

Last Answer : (a) ammonotelic when plenty of water is available

Aquatic reptiles are (a) ureotelic (b) ureotelic in water (c) ammonotelic (d) ureotelic over land

Description : Aquatic reptiles are (a) ureotelic (b) ureotelic in water (c) ammonotelic (d) ureotelic over land

Last Answer : b) ureotelic in water