A larval stage occurs in the life history of all members
of the group
(a) frog, lizard and cockroach
(b) Ascaris, housefly and frog
(c) housefly, earthworm and mosquito
(d) butterfly, frog and mosquito.

1 Answer

Answer :

(d) butterfly, frog and mosquito.

Related questions

Description : What will you look for to identify the sex of the following? (a) Female Ascaris-sharply curved posterior end (b) Male frog- a copulatory pad on the first digit of the hind limb (c) Female cockroach-anal cerci (d) Male shark-claspers borne on pelvic fins

Last Answer : (d) Male shark-claspers borne on pelvic fins

Description : What will you look for to identify the sex of the following? (a) Female Ascaris-sharply curved posterior end (b) Male frog- a copulatory pad on the first digit of the hind limb (c) Female cockroach-anal cerci (d) Male shark-claspers borne on pelvic fins

Last Answer : (d) Male shark-claspers borne on pelvic fins

Description : Uric acid is the chief nitrogenous component of the excretory products of (a) earthworm (b) cockroach (c) frog (d) man.

Last Answer : (b) cockroach

Description : Which one of the following is the true description about an animal concerned? (a) Rat - Left kidney is slightly higher in position than the right one (b) Cockroach - 10 pairs of spiracles (2 ... stomach, gizzard and intestine (d) Frog - Body divisible into three regions - head, neck and trunk

Last Answer : (b) Cockroach - 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)

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

Description : Which of the following insect has its scientific name as Blattaria? (1) Hectic (2) Cockroach (3) Mosquito (4) Butterfly

Last Answer : (2) Cockroach Explanation: The term Blattaria comes from the Latin blatta, which simply means cockroach. It is the scientific name of cockroaches and refer to an order of medium to large ... In some classifications, cockroaches are treated as belonging to the Blattodea sub-order of Blattaria order.

Description : Which of the following insect has its scientific name as Blattaria ? (1) Beetle (2) Cockroach (3) Mosquito (4) Butterfly

Last Answer : Cockroach

Description : The example of hermaphrodite animal in which cross fertilization occurs is - (1) Hydra (2) Ascaris (3) Earthworm (4) Silkworm

Last Answer : (1) Hydra Explanation: Cross fertilization occurs in Hydra. The spermatozoa released from the testis of one Hydra swim about in water with their tails and finally come into contact with the ovum ... penetrates the ovum and fertilizes it. This results in the formation of a zygote which is diploid.

Description : The example of hermaphrodite animal in which cross fertilisation occurs is (1) Hydra (2) Ascaris (3) Earthworm (4) Silkworm

Last Answer : Hydra

Description : Infection of Ascaris usually occurs by (a) Tse-tse fly (b) mosquito bite (c) drinking water containing eggs of Ascaris (d) eating imperfectly cooked pork

Last Answer : (c) drinking water containing eggs of Ascaris

Description : Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct? (a) It is present only in larval tail in ascidian. (b) It is ... absent throughout life in humans from the very beginning. (d) It is present throughout life in Amphioxus.

Last Answer : (c) It is absent throughout life in humans from the very beginning.

Description : Kalaazar is transmitted by – (1) tsetse fly (2) housefly (3) anopheles mosquito (4) sand fly

Last Answer : (4) sand fly Explanation: Kala-azar is a chronic and potentially fatal parasitic disease of the viscera (the internal organs, particularly the liver, spleen, bone marrow and lymph nodes) which is ... ), Africa (primarily Sudan) and South America. It is transmitted by the bite of female sandflies.

Description : Kala-azar is transmitted by (1) tsetse fly (2) housefly (3) anopheles mosquito (4) sand fly

Last Answer : sand fly

Description : 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 - ... - Metameric Ancylostoma segmentation (d) Sea horse and - Cold blooded flying fish (poikilothermal)

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

Description : 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 - ... - Metameric Ancylostoma segmentation (d) Sea horse and - Cold blooded flying fish (poikilothermal)

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

Description : Which group of animals belong to the same phylum? (a) Prawn, Scorpion, Locusta (b) Sponge, Sea anemone, Starfish (c) Malarial parasite, Amoeba, Mosquito (d) Earthworm, Pinworm, Tapeworm

Last Answer : (a) Prawn, Scorpion, Locusta

Description : Which of the following is a monogenetic parasite? (1) Hydra (2) Fasciola (3) Ascaris (4) Earthworm

Last Answer : (3) Ascaris Explanation: Ascaris is a monogenetic parasite as it completes it life cycle in a single host, i.e., man.

Description : Which of the following is a monogenetic parasite ? (1) Hydra (2) Fasciola (3) Ascaris (4) Earthworm

Last Answer : Ascaris

Description : Conglobate gland is a leaf like structure found in – (1) Female Cockroach (2) Male Cockroach (3) Male Ascaris (4) Female Ascaris

Last Answer : (2) Male Cockroach Explanation: Conglobate gland is a leaf like, median, unbranched gland of male cockroach. It lies below the ejaculatory duct and open into the genital pouch close to the male genital aperture.

Description : Conglobate gland is a leaf like structure found in (1) Female Cockroach (2) Male Cockroach (3) Male Ascaris (4) Female Ascaris

Last Answer : Male Cockroach

Description : What is the evolutionary advantage of the occurrence of sperm cells and larval stage in the life cycle of sponges?

Last Answer : The sexual reproduction in sponges, in addition to contributing to genetic variability, also facilitates the colonization of farther environments by these beings, since sperm cells and larvae are mobile and can swim in the exterior to compensate the immobility of the adult individual.

Description : Identify the likely organisms (1), (2), (3) and (4) in the food web shown below. Hawks Snakes Lion Foxes Garden lizard Grass- (4) Sparrow hopper Vegetation seeds (2) Owls Mice (1) (3) (1) ( ... a) Deer Rabbit Frog Rat (b) Dog Squirrel Bat Deer (c) Rat Dog Tortoise Crow (d) Squirrel Cat Rat Pigeon

Last Answer : (a) Deer Rabbit Frog Rat

Description : Which one of the following animals has two separate circulatory pathways? (a) Whale (b) Shark (c) Frog (d) Lizard

Last Answer : (a) Whale

Description : Skin is an accessory organ of respiration in (a) humans (b) frog (c) rabbit (d) lizard.

Last Answer : (b) frog

Description : In predation between i. A lion and a deer ii. A snake and a frog iii. A lizard and an insect and iv. An owl and a rat Which predator will have greater control over its prey? (1) Lion (2) Owl (3) Snake (4) Lizard

Last Answer : Snake

Description : Which one of the following animals is called farmer's friend - (1) Ant (2) Earthworm (3) Bee (4) Butterfly

Last Answer : (2) Earthworm Explanation: Earthworms travel underground by the means of waves of muscular contractions which alternately shorten and lengthen the body. The shortened part is anchored to the surrounding soil ... . They also work as biological "pistons" forcing air through the tunnels as they move.

Description : Which one of the following animals is called farmer’s friend ? (1) Ant (2) Earthworm (3) Bee (4) Butterfly

Last Answer : Earthworm

Description : What structure is common to both earthworm and cockroach? -General Knowledge

Last Answer : The answer is 'Ventral nerve cord'

Description : What structure is common to both earthworm and cockroach? -General Knowledge

Last Answer : answer:

Description : What structure is common to both earthworm and cockroach? -General Knowledge

Last Answer : answer:

Description : Correct order of excretory organs in Cockroach, Earthworm and Rabbit respectively

Last Answer : Correct order of excretory organs in Cockroach, Earthworm and Rabbit respectively A. Skin, malpighi ... , kidney D. Nephridia, kidney, green gland

Description : Common feature in earthworm and cockroach is

Last Answer : Common feature in earthworm and cockroach is A. Cuticle (exoskeleton) B. Solid and ventral nerve cord C. Nephirdia D. Malpighian tubules

Description : Structure common between earthworm and cockroach is Or Which one feature is common to leech cockroach and scorpion

Last Answer : Structure common between earthworm and cockroach is Or Which one feature is common to leech ... Excretion by nephridia D. Ventral nerve cord

Description : Correct order of excretory organs in Cockroach, Earthworm and Rabbit respectively

Last Answer : Correct order of excretory organs in Cockroach, Earthworm and Rabbit respectively A. Skin, Malpighi ... , kidney D. Nephridia, kidney, green gland

Description : Which of the following creatures has no blood but respires? (a) Cockroach (b) Earthworm (c) Fish (d) Hydra

Last Answer : Ans:(d)

Description : Which of the following has no blood, but respires? (1) Fish (2) Earthworm (3) Hydra (4) Cockroach

Last Answer : (3) Hydra

Description : Which of the following pairs has open type of circulatory system? (1) Earthworm and Leech (2) Man and Whale (3) Cockroach and Silverfish (4) Tadpole larva and Fish

Last Answer : (3) Cockroach and Silverfish Explanation: The open circulatory system is common to mollusks and arthropods. Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the ... . Cockroaches and silverfish have an open circulatory system. They don't have any blood vessels.

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

Description : In which of the following animals nerve cell is present but brain is absent? (a) Sponge (b) Earthworm (c) Cockroach (d) Hydra

Last Answer : (d) Hydra

Description : What structure is common to both earthworm and cockroach?

Last Answer : Ventral nerve cord

Description : Which of the following has no blood, but respires ? (1) Fish (2) Earthworm (3) Hydra (4) Cockroach

Last Answer : Hydra

Description : Which of the following pairs has open type of circulatory system? (1) Earthworm and Leech (2) Man and Whale (3) Cockroach and Silverfish (4) Tadpole larva and Fish

Last Answer : Cockroach and Silverfish

Last Answer : : Animals of the Eurocordata stage have notocord only in the larval stage.

Description : Is there a larval stage in echinoderms?

Last Answer : In echinoderms embryonic development is indirect, with ciliated larvae.

Description : How are the main classes of arthropods classified according to the presence of larval stage in their embryonic development?

Last Answer : In crustaceans there are species with direct and others with indirect development. In insects there are species without larval stage (ametabolic insects), others undergoing indirect ... while holometabolic insects undergo complete metamorphosis. Phylum Arthropoda - Image Diversity: metamorphosis

Description : What is the name of the larval stage of polychaetes?

Last Answer : Among the annelid classes only polychaetes present a larval stage. Their larva is called trocophore.

Description : What is direct development? Is there a larval stage in planarias?

Last Answer : Sexual reproduction with direct development is that in which there is not a larval stage in the embryonic development. When a larval stage exists it is said to be indirect development. In the sexual reproduction of planarias there is no larval stage.

Description : What is the name of the larva of corals and sea anemones? What is the biological importance of that larval stage?

Last Answer : Sexual reproduction in corals and sea anemones have a larval stage and the larva is called planula. Many marine animals are sessile or practically sessile, like sponges, corals and sea ... stage of their life cycle provides better spatial distribution of these species. Image Diversity: planula

Description : Silk thread is obtained from silk moth during (a) pupal stage (b) larval stage (c) nymph stage (d) adult stage.

Last Answer : (a) pupal stage

Description : Addition of a trace of thyroxine or iodine in water containing tadpoles will (a) keep them in larval stage (b) hasten their metamorphosis (c) slow down their metamorphosis (d) kill the tadpoles.

Last Answer : (b) hasten their metamorphosis