Select the correct option with respect to cockroaches. (a) Malpighian tubules convert nitrogenous wastes into urea. (b) Males bear short anal styles not present in females. (c) Nervous system comprises of a dorsal nerve cord and ten pairs of ganglia. (d) The forewings are tegmina which are used in fligh

Select the correct option with respect to cockroaches.
(a) Malpighian tubules convert nitrogenous wastes
into urea.
(b) Males bear short anal styles not present in
females.
(c) Nervous system comprises of a dorsal nerve
cord and ten pairs of ganglia.
(d) The forewings are tegmina which are used in
fligh
by

1 Answer

Answer :

(b) Males bear short anal styles not present in
females
by

Related questions

Select the correct statement from the ones given below with respect to Periplaneta americana. (a) Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives. (b) Males bear a pair of short thread like anal styles. (c) There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut. (d) Grinding of food is carried out only by the mouth parts.

Description : Select the correct statement from the ones given below with respect to Periplaneta americana. (a) Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal ... midgut and hindgut. (d) Grinding of food is carried out only by the mouth parts.

Last Answer : (b) Males bear a pair of short thread like anal styles.

Select the correct statement from the ones given below with respect to Periplaneta americana (1) Grinding of food is carried out only by the mouth parts (2) Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives (3) Males bear a pair of short thread like anal styles (4) There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut

Description : Select the correct statement from the ones given below with respect to Periplaneta americana (1) Grinding of food is carried out only by the mouth parts (2) Nervous system located dorsally, consists ... (4) There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut

Last Answer : (3) Males bear a pair of short thread like anal styles

Which of the following features is used to identify a male cockroach from a female cockroach? (a) Presence of a boat-shaped sternum on the 9th abdominal segment (b) Presence of caudal styles (c) Forewings with darker tegmina (d) Presence of anal cerci

Description : Which of the following features is used to identify a male cockroach from a female cockroach? (a) Presence of a boat-shaped sternum on the 9th abdominal segment (b) Presence of caudal styles (c) Forewings with darker tegmina (d) Presence of anal cerci

Last Answer : (b) Presence of caudal styles

Which of the following features is used to identify a male cockroach from a female cockroach ? (1) Presence of a boat shaped sternum on the 9th abdominal segment (2) Presence of caudal styles (3) Forewings with darker tegmina (4) Presence of anal cerci

Description : Which of the following features is used to identify a male cockroach from a female cockroach ? (1) Presence of a boat shaped sternum on the 9th abdominal segment (2) Presence of caudal styles (3) Forewings with darker tegmina (4) Presence of anal cerci

Last Answer : (2) Presence of caudal styles

Male and female cockroaches can be distinguished externally through (a) anal styles in male (b) anal cerci in female (c) anal style and antennae in females (d) both (b) and (c).

Description : Male and female cockroaches can be distinguished externally through (a) anal styles in male (b) anal cerci in female (c) anal style and antennae in females (d) both (b) and (c).

Last Answer : (a) anal styles in male

Which of the following happens in the common cockroach? (a) Malpighian tubules are excretory organs projecting out from the colon. (b) Oxygen is transported by haemoglobin in blood. (c) Nitrogenous excretory product is urea. (d) The food is ground by mandibles and gizzard.

Description : Which of the following happens in the common cockroach? (a) Malpighian tubules are excretory organs projecting out from the colon. (b) Oxygen is transported by haemoglobin in blood. (c) Nitrogenous excretory product is urea. (d) The food is ground by mandibles and gizzard.

Last Answer : (d) The food is ground by mandibles and gizzard.

Match the following organisms with respective characteristics. (A) Pila (i) Flame cells (B) Bombyx (ii) Comb plates (C) Pleurobrachia (iii)Radula (D) Taenia (iv) Malpighian tubules Select the correct option from the following. (A) (B) (C) (D) (a) (iii) (ii) (iv) (i) (b) (iii) (ii) (i) (iv) (c) (iii) (iv) (ii) (i) (d) (ii) (iv) (iii) (i)

Description : Match the following organisms with respective characteristics. (A) Pila (i) Flame cells (B) Bombyx (ii) Comb plates (C) Pleurobrachia (iii)Radula (D) Taenia (iv) Malpighian tubules Select the correct option from the following. (A) (B) (C) ... (i) (iv) (c) (iii) (iv) (ii) (i) (d) (ii) (iv) (iii) (i)

Last Answer : (c) (iii) (iv) (ii) (i)

With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres are usually longer than preganglionic parasympathetic fibres c. acetylcholine is the neurotransmitter at the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors

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Last Answer : the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves

If the head of cockroach is removed, it may live for few days because (a) the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen (b) the cockroach does not have nervous system(c) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body (d) the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.

Description : If the head of cockroach is removed, it may live for few days because (a) the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen (b) the cockroach does not have nervous ... a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.

Last Answer : (c) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body

Which one of the following pairs of items correctly belongs to the category of organs mentioned against it? (a) Nephridia of earthworm and Malpighian tubules of cockroach - excretory organs (b) Wings of honeybee and wings of crow - homologous organs (c) Thorn of Bougainvillea and tendrils of Cucurbita - analogous organs (d) Nictitating membrane and blind spot in human eye - vestigial organs

Description : Which one of the following pairs of items correctly belongs to the category of organs mentioned against it? (a) Nephridia of earthworm and Malpighian tubules of cockroach - excretory organs ( ... Cucurbita - analogous organs (d) Nictitating membrane and blind spot in human eye - vestigial organs

Last Answer : (a) Nephridia of earthworm and Malpighian tubules of cockroach - excretory organs

Select the option which shows correct matching of animal with its excretory organ and excretory product. Animal Excretory Excretory organ product (a) Labeo (Rohu) Nephridial Ammonia tubes (b) Salamander Kidneys Urea (c) Peacock Kidneys Urea (d) Housefly Renal tubules Uric acid

Description : Select the option which shows correct matching of animal with its excretory organ and excretory product. Animal Excretory Excretory organ product (a) Labeo (Rohu) Nephridial Ammonia tubes (b) Salamander Kidneys Urea (c) Peacock Kidneys Urea (d) Housefly Renal tubules Uric acid

Last Answer : (b) Salamander Kidneys Urea

What external changes are visible after the last moult of a cockroach nymph? (a) Both forewings and hindwings develop (b) Labium develops (c) Mandibles become harder (d) Anal cerci develop

Description : What external changes are visible after the last moult of a cockroach nymph? (a) Both forewings and hindwings develop (b) Labium develops (c) Mandibles become harder (d) Anal cerci develop

Last Answer : (a) Both forewings and hindwings develop

The tubular and dorsal nervous system of chordates is related to the cephalization in these animals and to bilateral symmetry. The presence of neural integrating centers with concentration of neurons in the brains and the spinal cord (central nervous system, CNS) allowed the increase of the interaction complexity between these animals and the environment. Receptor (afferent conduction) and efferent (motor, regulatory and behavioral reactions) functions come out more sophisticated in chordates due to the presence of more well-developed neural networks. These features have been preserved by evolution as they provide adaptive advantage to their owners.

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Last Answer : How can the tubular-dorsal nervous system in chordates be compared to the nervous pattern present in invertebrates?

Does a kangaroo have a dorsal nerve cord notochord?

Description : Does a kangaroo have a dorsal nerve cord notochord?

Last Answer : dorsal nerve cord

Which of the following characters is absent in all chordates? (a) Diaphragm (b) Coelom (c) Pharyngeal gill clefts (d) Dorsal nerve cord

Description : Which of the following characters is absent in all chordates? (a) Diaphragm (b) Coelom (c) Pharyngeal gill clefts (d) Dorsal nerve cord

Last Answer : (a) Diaphragm

Match the items given in column I with those in column II and select the correct option given below. Column I Column II (Function) (Part of excretory system) A. Ultrafiltration (i) Henle’s loop B. Concentration (ii) Ureter of urine C. Transport of urine(iii) Urinary bladder D. Storage of urine (iv) Malpighian corpuscle (v) Proximal convoluted tubule A B C D (a) (iv) (v) (ii) (iii) (b) (iv) (i) (ii) (iii) (c) (v) (iv) (i) (ii) (d) (v) (iv) (i) (iii)

Description : Match the items given in column I with those in column II and select the correct option given below. Column I Column II (Function) (Part of excretory system) A. Ultrafiltration (i) Henle's loop B. Concentration (ii) Ureter of urine C. ... (ii) (iii) (c) (v) (iv) (i) (ii) (d) (v) (iv) (i) (iii)

Last Answer : (b) (iv) (i) (ii) (iii)

Malpighian tubules are analogous to

Description : Malpighian tubules are analogous to

Last Answer : Malpighian tubules are analogous to A. Trachea of cockroach B. Gills C. Flame cells D. None of these

Funtion of Malpighian tubules of cockroach :

Description : Funtion of Malpighian tubules of cockroach :

Last Answer : Funtion of Malpighian tubules of cockroach : A. Digestion B. Respiration C. Excretion D. Reproduction

.Malpighian tubules are (a) excretory organs of insects (b) excretory organs of annelids (c) respiratory organs of insects (d) respiratory organs of annelids.

Description : .Malpighian tubules are (a) excretory organs of insects (b) excretory organs of annelids (c) respiratory organs of insects (d) respiratory organs of annelids.

Last Answer : (a) excretory organs of insects

The excretory structures of flatworms/ Taenia are (a) flame cells (b) protonephridia (c) Malpighian tubules (d) green glands

Description : The excretory structures of flatworms/ Taenia are (a) flame cells (b) protonephridia (c) Malpighian tubules (d) green glands

Last Answer : (a) flame cells

In which one of the following organisms its excretory organs are correctly stated? (a) Humans – Kidneys, sebaceous glands and tear glands (b) Earthworm – Pharyngeal, integumentary and septal nephridia (c) Cockroach – Malpighian tubules and enteric caeca (d) Frog – Kidneys, skin and buccal epithelium

Description : In which one of the following organisms its excretory organs are correctly stated? (a) Humans - Kidneys, sebaceous glands and tear glands (b) Earthworm - Pharyngeal, integumentary and septal ... Cockroach - Malpighian tubules and enteric caeca (d) Frog - Kidneys, skin and buccal epithelium

Last Answer : (b) Earthworm – Pharyngeal, integumentary and septal nephridia

Which of the following statements are true for the Phylum Chordata? (A) In Urochordata, notochord extends from head to tail and it is present throughout their life. (B) In Vertebrata, notochord is present during the embryonic period only. (C) Central nervous system is dorsal and hollow. (D) Chordata is divided into 3 subphyla : Hemichordata, Tunicata and Cephalochordata. (a) (D) and (C) (b) (C) and (A) (c) (A) and (B) (d) (B) and (C)

Description : Which of the following statements are true for the Phylum Chordata? (A) In Urochordata, notochord extends from head to tail and it is present throughout their life. (B) In Vertebrata, notochord is present during the embryonic period only. (C ... (C) (b) (C) and (A) (c) (A) and (B) (d) (B) and (C)

Last Answer : (d) (B) and (C)

Muscarinic cholinergic receptors (a) Are located only on parasympathetically innervated effector cells (b) Mediate responses by opening an instrinsic Na+ ion channel (c) Are present on vascular endothelium which has no cholinergic nerve supply (d) Predominate in the autonomic ganglia

Description : Muscarinic cholinergic receptors (a) Are located only on parasympathetically innervated effector cells (b) Mediate responses by opening an instrinsic Na+ ion channel (c) Are present on vascular endothelium which has no cholinergic nerve supply (d) Predominate in the autonomic ganglia

Last Answer : Ans: C

Muscarinic cholinergic receptors: A. Are located only on parasympathetically innervated effector cells B. Mediate responses by opening an intrinsic Na+ ion channel C. Are present on vascular endothelium which has no cholinergic nerve supply D. Predominate in the autonomic ganglia

Description : Muscarinic cholinergic receptors: A. Are located only on parasympathetically innervated effector cells B. Mediate responses by opening an intrinsic Na+ ion channel C. Are present on vascular endothelium which has no cholinergic nerve supply D. Predominate in the autonomic ganglia

Last Answer : C. Are present on vascular endothelium which has no cholinergic nerve supply

Muscarinic cholinergic receptors: A. Are located only on parasympathetically innervated effector cells B. Mediate responses by opening an intrinsic Na+ ion channel C. Are present on vascular endothelium which has no cholinergic nerve supply D. Predominate in the autonomic ganglia

Description : Muscarinic cholinergic receptors: A. Are located only on parasympathetically innervated effector cells B. Mediate responses by opening an intrinsic Na+ ion channel C. Are present on vascular endothelium which has no cholinergic nerve supply D. Predominate in the autonomic ganglia

Last Answer : C. Are present on vascular endothelium which has no cholinergic nerve supply

Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during child birth (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Description : Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during ... (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Last Answer : (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron

General anaesthetics produce immobility in response to painful surgical stimuli by acting primarily at the: A. Motor cortex B. Basal ganglia C. Thalamus D. Spinal cord

Description : General anaesthetics produce immobility in response to painful surgical stimuli by acting primarily at the: A. Motor cortex B. Basal ganglia C. Thalamus D. Spinal cord

Last Answer : D. Spinal cord

Anal styles are found in :

Description : Anal styles are found in :

Last Answer : Anal styles are found in : A. Housefly B. Female cockroach C. Male cockroach D. Both male & female cockroach

Select the correct statement with respect to disorders of muscles in humans. (a) Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing. (b) Accumulation of urea and creatine in the joints causes their inflammation. (c) An overdose of vitamin D causes osteoporosis. (d) Rapid contractions of skeletal muscles cause muscle dystrophy

Description : Select the correct statement with respect to disorders of muscles in humans. (a) Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing. (b) Accumulation of ... of vitamin D causes osteoporosis. (d) Rapid contractions of skeletal muscles cause muscle dystrophy

Last Answer : (a) Failure of neuromuscular transmission in myasthenia gravis can prevent normal swallowing.

The following are true about the spinal cord: a. segment T12 lies at the level of vertebral body T9 b. cerebrospinal fluid is found within the subdural space c. two point discrimination is transmitted in the dorsal column d. hemisection results in contralateral loss of pain and temperature sense below the lesio

Description : The following are true about the spinal cord: a. segment T12 lies at the level of vertebral body T9 b. cerebrospinal fluid is found within the subdural space c. two point ... the dorsal column d. hemisection results in contralateral loss of pain and temperature sense below the lesio

Last Answer : segment T12 lies at the level of vertebral body T9

The following are true about pain: a. in disseminated cancer can be effectively relieved by hypophysectomy b. does not ascend through the dorsal column of the spinal cord c. is transmitted faster through the C fibres than the A delta fibres d. stimulation of the ß receptors in the brain produces analgesia

Description : The following are true about pain: a. in disseminated cancer can be effectively relieved by hypophysectomy b. does not ascend through the dorsal column of the spinal cord c. is transmitted faster ... fibres than the A delta fibres d. stimulation of the ß receptors in the brain produces analgesia

Last Answer : stimulation of the ß receptors in the brain produces analgesia

The following sensations are conveyed in the dorsal column of the spinal cord: a. pain b. temperature c. vibration d. proprioception

Description : The following sensations are conveyed in the dorsal column of the spinal cord: a. pain b. temperature c. vibration d. proprioception

Last Answer : vibration

Of the following neurotransmitters, which demonstrates inhibitory action, helps control mood and sleep, and inhibits pain pathways? a) Serotonin The sources of serotonin are the brain stem, hypothalamus, and dorsal horn of the spinal cord.

Description : Of the following neurotransmitters, which demonstrates inhibitory action, helps control mood and sleep, and inhibits pain pathways? a) Serotonin The sources of serotonin are the brain ... d) Acetylcholine Acetylcholine is usually excitatory, but the parasympathetic effects are sometimes inhibitory.

Last Answer : a) Serotonin The sources of serotonin are the brain stem, hypothalamus, and dorsal horn of the spinal cord.

Initial bradycardia caused by intramuscular injection of atropine is believed to be caused by: A. Stimulation of medullary vagal centre B. Stimulation of vagal ganglia C. Blockade of M2 receptors on SA nodal cells D. Blockade of muscarinic autoreceptors on vagal nerve endings

Description : Initial bradycardia caused by intramuscular injection of atropine is believed to be caused by: A. Stimulation of medullary vagal centre B. Stimulation of vagal ganglia C. Blockade of M2 receptors on SA nodal cells D. Blockade of muscarinic autoreceptors on vagal nerve endings

Last Answer : D. Blockade of muscarinic autoreceptors on vagal nerve endings

Initial bradycardia caused by intramuscular injection of atropine is believed to be caused by: A. Stimulation of medullary vagal centre B. Stimulation of vagal ganglia C. Blockade of M2 receptors on SA nodal cells D. Blockade of muscarinic autoreceptors on vagal nerve endings

Description : Initial bradycardia caused by intramuscular injection of atropine is believed to be caused by: A. Stimulation of medullary vagal centre B. Stimulation of vagal ganglia C. Blockade of M2 receptors on SA nodal cells D. Blockade of muscarinic autoreceptors on vagal nerve endings

Last Answer : D. Blockade of muscarinic autoreceptors on vagal nerve endings

Which of the following is the correct description of the term 'sex ratio' as used in context of the census? (1) Number of females per 1000 persons (2) Number of females in a sample of 1000 persons (3) Number of males per 1000 females (4) Number of females per 1000 males

Description : Which of the following is the correct description of the term 'sex ratio' as used in context of the census? (1) Number of females per 1000 persons (2) Number of females in a sample of 1000 persons (3) Number of males per 1000 females (4) Number of females per 1000 males

Last Answer : (4) Number of females per 1000 males

Which of the following is the correct description of the term sex-ratio as used in the context of the census of population? (1) Number of males per 1000 females. (2) Number of females per 1000 males. (3) Number of females per 100 males. (4) Number of females in a sample of 1000 persons.

Description : Which of the following is the correct description of the term sex-ratio as used in the context of the census of population? (1) Number of males per 1000 females. (2) Number of females per 1000 males. (3) Number of females per 100 males. (4) Number of females in a sample of 1000 persons.

Last Answer : (2) Number of females per 1000 males. Explanation: As per the 2011 Census, Kerala has the highest literacy rate of 93.11% in India. Among states, it is followed by Mizoram (91.58%) and Tripura (87.75%) at second and third positions respectively.

Eight persons P, Q, R, S, W, X, Y and Z in which 4 females are facing towards and 4 males facing away from the center. Males and females are seated alternately. I. X is male, W position is 3rd to the right of X and exactly opposite to Q. II. P is 2nd to the left of W. III. S and R are facing each other as well R & Y are neighbors. Which of the following is correct for neighbors? a) X, W b) R, X c) S, W d) P, S

Description : Eight persons P, Q, R, S, W, X, Y and Z in which 4 females are facing towards and 4 males facing away from the center. Males and females are seated alternately. I. X is male, W position is 3rd to the right of X ... . Which of the following is correct for neighbors? a) X, W b) R, X c) S, W d) P, S

Last Answer : Ans: option (d)

Which one of the following is a matching pair of a body feature and the animal possessing it? (a) Ventral central – Leech nervous system (b) Pharyngeal gill slits – Chamaeleon absent in embryo (c) Ventral heart – Scorpion (d) Post-anal tail – Octopus

Description : Which one of the following is a matching pair of a body feature and the animal possessing it? (a) Ventral central – Leech nervous system (b) Pharyngeal gill slits – Chamaeleon absent in embryo (c) Ventral heart – Scorpion (d) Post-anal tail – Octopus

Last Answer : (a) Ventral central – Leech nervous system

The haemodialyzer has semi-permeable lining of tubes which help to: (a) To maintain osmotic pressure of blood. (b) To filter nitrogenous wastes from the dialyzing solution. (c) In passing the waste product, in the dialyzing solution. (d) To pump purified blood back into the body of the patient.

Description : The haemodialyzer has semi-permeable lining of tubes which help to: (a) To maintain osmotic pressure of blood. (b) To filter nitrogenous wastes from the dialyzing solution. (c) In passing the waste product, in the dialyzing solution. (d) To pump purified blood back into the body of the patient.

Last Answer : (c) In passing the waste product, in the dialyzing solution.

In chordates the nervous system is dorsal and highly cephalized while in most invertebrates the nervous system is ganglial and ventral.

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Last Answer : What is the group of the phylum Chordata that first colonized the terrestrial environment?

Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry?

Description : Is the tubular-dorsal nervous system of chordates associated to radial or lateral symmetry?

Last Answer : How does that explain the complexity level of the nervous system reached by the vertebrate evolutionary branch?

The human hind brain comprises three parts, one of which is (a) spinal cord (b) corpus callosum (c) cerebellum (d) hypothalamus

Description : The human hind brain comprises three parts, one of which is (a) spinal cord (b) corpus callosum (c) cerebellum (d) hypothalamus

Last Answer : (c) cerebellum

91. The human hind brain comprises three parts, one of which is (1) Hypothalamus (2) Spinal cord (3) Corpus callosum (4) Cerebellum

Description : 91. The human hind brain comprises three parts, one of which is (1) Hypothalamus (2) Spinal cord (3) Corpus callosum (4) Cerebellum

Last Answer : Cerebellum

What part of the body excretes nitrogenous wastes through urine ?

Description : What part of the body excretes nitrogenous wastes through urine ?

Last Answer : Urine excretes 80% of nitrogenous wastes from the body.

Assertion `:-` The primary function of sweat is to facilitate a cooling effect on the body surface. Reason `:-` Small amount of nitrogenous wastes cou

Description : Assertion `:-` The primary function of sweat is to facilitate a cooling effect on the body surface. Reason `:-` Small amount of nitrogenous wastes cou

Last Answer : Assertion `:-` The primary function of sweat is to facilitate a cooling effect on the body surface. ... . D. If both Assertion & Reason are false.

Uricotelic mode of passing out nitrogenous wastes is found in

Description : Uricotelic mode of passing out nitrogenous wastes is found in

Last Answer : Uricotelic mode of passing out nitrogenous wastes is found in A. Reptiles and Birds B. Birds ... C. Amphibians and Reptiles D. Insects and Amphibians

In Hydra, egestion of undigested food and excretion of nitrogenous wastes occur through

Description : In Hydra, egestion of undigested food and excretion of nitrogenous wastes occur through

Last Answer : In Hydra, egestion of undigested food and excretion of nitrogenous wastes occur through A. Mouth and ... Mouth and body wall D. Mouth and tentacles.