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

Which of the following creatures has no blood but respires? (a) Cockroach (b) Earthworm (c) Fish (d) Hydra
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Which of the following has no blood, but respires? (1) Fish (2) Earthworm (3) Hydra (4) Cockroach

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

Last Answer : (3) Hydra

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

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

Last Answer : Hydra

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

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

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

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.

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

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

.Which one of the following animals possesses nerve cells but no nerves? (a) Hydra (b) Tapeworm (c) Earthworm (d) Frog’s tadpole

Description : .Which one of the following animals possesses nerve cells but no nerves? (a) Hydra (b) Tapeworm (c) Earthworm (d) Frog’s tadpole

Last Answer : (a) Hydra

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

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.

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

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.

The nephridia in earthworm are analogous to (a) nematoblasts of Hydra (b) flame cells of Planaria (c) gills of prawn (d) trachea of insects.

Description : The nephridia in earthworm are analogous to (a) nematoblasts of Hydra (b) flame cells of Planaria (c) gills of prawn (d) trachea of insects.

Last Answer : (b) flame cells of Planaria

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

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

Last Answer : Ascaris

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

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

Last Answer : Hydra

Which of the following has no blood, but respires?

Description : Which of the following has no blood, but respires?

Last Answer : Hydra

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

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

Last Answer : The answer is 'Ventral nerve cord'

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

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

Last Answer : answer:

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

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

Last Answer : answer:

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

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

Common feature in earthworm and cockroach is

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

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

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

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

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

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

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

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

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 (c) Earthworm - The alimentary canal consists of a sequence of pharynx, oesophagus, stomach, gizzard and intestine (d) Frog - Body divisible into three regions - head, neck and trunk(b) Cockroach - 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)

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)

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.

Description : 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.

Last Answer : (d) butterfly, frog and mosquito.

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

What structure is common to both earthworm and cockroach?

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

Last Answer : Ventral nerve cord

Which one of the following creatures has maximum number of ribs? (1) Crocodile oo (2) Snake (3) Ray fish (4) Flying mammal

Description : Which one of the following creatures has maximum number of ribs? (1) Crocodile oo (2) Snake (3) Ray fish (4) Flying mammal

Last Answer : (2) Snake Explanation: Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae) and each have a pair of ribs on either side.

Which one of the following creatures has maximum number of ribs ? (1) Crocodile (2) Snake (3) Ray fish (4) Flying mammal

Description : Which one of the following creatures has maximum number of ribs ? (1) Crocodile (2) Snake (3) Ray fish (4) Flying mammal

Last Answer : Snake

How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, Aquatic arthropods, Flatworm, Molluscs, Bir

Description : How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, Aquatic arthropods, Flatworm, Molluscs, Bir

Last Answer : How many animals in the given list have gills for respiration ? Earthworm , Frog, Fish, Insects, Reptiles, ... A. Six B. Four C. Three D. Five

What is true about Nereis, scorpion, cockroach and silver fish? (a) They all possess dorsal heart. (b) None of them is aquatic. (c) They all belong to the same phylum. (d) They all have jointed paired appendages.

Description : What is true about Nereis, scorpion, cockroach and silver fish? (a) They all possess dorsal heart. (b) None of them is aquatic. (c) They all belong to the same phylum. (d) They all have jointed paired appendages.

Last Answer : (a) They all possess dorsal heart.

Which of these strange creatures has wings, not a bird , but a tiger that eats blood ?

Description : Which of these strange creatures has wings, not a bird , but a tiger that eats blood ?

Last Answer : Answer Mosquitoes have wings but not birds and eat blood.

Blood circulation in blood vessesl of earthworm occurs

Description : Blood circulation in blood vessesl of earthworm occurs

Last Answer : Poterior

Which pigment is found in the blood of earthworm?

Description : Which pigment is found in the blood of earthworm?

Last Answer : Hemocyanine

Normally animals can change the place, but which one of the following animals cannot change the place? (1) Starfish (2) Sponge (3) Hydra (4) Leech

Description : Normally animals can change the place, but which one of the following animals cannot change the place? (1) Starfish (2) Sponge (3) Hydra (4) Leech

Last Answer : (3) Hydra Explanation: Hydras are generally sedentary and sessile.

Normally animals can change the place, but which one of the following animals cannot change the place ? (1) Starfish (2) Sponge (3) Hydra (4) Leech

Description : Normally animals can change the place, but which one of the following animals cannot change the place ? (1) Starfish (2) Sponge (3) Hydra (4) Leech

Last Answer : Hydra

Assertion : - Blood in cockroach is colourless with no respiratory pigment. Reason : - Gasesous exchange occurs through diffusion in haemolymph.

Description : Assertion : - Blood in cockroach is colourless with no respiratory pigment. Reason : - Gasesous exchange occurs through diffusion in haemolymph.

Last Answer : Assertion : - Blood in cockroach is colourless with no respiratory pigment. Reason : - Gasesous exchange occurs through ... A. A B. B C. C D. D

While stranded in the desert, you come across two creatures offering water. Only, one has no nose, and one has spines. They say that one has poison, and the other will keep you going for a few more hours. Which one can't you trust? -Riddles

Description : While stranded in the desert, you come across two creatures offering water. Only, one has no nose, and one has spines. They say that one has poison, and the other will keep you going for a few more hours. Which one can't you trust? -Riddles

Last Answer : The one with no nose, for it’s a snake that bears poison. The other is a cactus, which has water in it.

Number of Eyes in an Earthworm is – (1) one (2) two (3) many (4) no eyes

Description : Number of Eyes in an Earthworm is – (1) one (2) two (3) many (4) no eyes

Last Answer : (4) no eyes Explanation: Earthworms have no eyes, but they do have light receptors and can tell when they are in the dark, or in the light.

Number of Eyes in an Earthworm is— (1) one (2) two (3) many (4) no eyes

Description : Number of Eyes in an Earthworm is— (1) one (2) two (3) many (4) no eyes

Last Answer :  no eyes

We are little Verbal creatures. Each of us with different features. The first of us in glass is set. The second you can find in jet. The third is trapped in tin. The fourth is boxed within. Now the fifth may try and hide, but it can never leave your side. An adopted sibling we also have but, he only appears when pigs fly. What are we? -Riddles

Description : We are little Verbal creatures. Each of us with different features. The first of us in glass is set. The second you can find in jet. The third is trapped in tin. The fourth is boxed within. Now the ... side. An adopted sibling we also have but, he only appears when pigs fly. What are we? -Riddles

Last Answer : The vowels A, E, I, O, U and sometimes Y.

I herald the darkness which descends on all creatures; You will know my approach by moans and wracked features. I visit the hippo, hyena, and horse, But never go near snails and spiders, of course. I would circle the globe, leaping one to the other, Should all the world's people ever clasp hands together.What am I? -Riddles

Description : I herald the darkness which descends on all creatures; You will know my approach by moans and wracked features. I visit the hippo, hyena, and horse, But never go near snails and spiders, of course. I ... one to the other, Should all the world's people ever clasp hands together.What am I? -Riddles

Last Answer : I am a Yawn.

What is the level of structural organisa- tion in Hydra and Jelly fishes?

Description : What is the level of structural organisa- tion in Hydra and Jelly fishes?

Last Answer : Tissue

Has anyone ever tried to get out of a speeding ticket, by whispering "Hail Hydra" into the copper's ear?

Description : Has anyone ever tried to get out of a speeding ticket, by whispering "Hail Hydra" into the copper's ear?

Last Answer : Don’t need to. They can’t catch me. My car is a converted quinjet.

Which one of symbiotic algae is found in secretory cell of hydra? -Do You Know?

Description : Which one of symbiotic algae is found in secretory cell of hydra? -Do You Know?

Last Answer : answer:

Explain ' Characteristic Cells of Nidoblast Hydra ' ?

Description : Explain ' Characteristic Cells of Nidoblast Hydra ' ?

Last Answer : Hydra nidaria. The outer layer of the hydra is called the ectoderm and the inner layer is called the endoderm. At the ectoderm layer there is a characteristic cell called nidoblast. These cells ... such as hunting , self-defense , and movement. This is why "nidoblast hydra characteristic cells".

Hydra Animal of which episode ?

Description : Hydra Animal of which episode ?

Last Answer : Hydra

Does Hydra form epidermis ?

Description : Does Hydra form epidermis ?

Last Answer : The epidermis hydra, which is wrapped in a thin and flexible cuticle, forms the epidermis.

What is the external structure of Hydra ?

Description : What is the external structure of Hydra ?

Last Answer : : Hydra 's body is soft , cylindrical and symmetrical. They are usually 10-30 mm. It is long and about 1 mm wide.

In what process does Hydra complete respiration and excretion ?

Description : In what process does Hydra complete respiration and excretion ?

Last Answer : Hydra completes respiration and excretion in the diffusion process.

What does Hydra use to feed ?

Description : What does Hydra use to feed ?

Last Answer : Hydra feeds with the help of cultivators.

Which species of Hydra is most abundant in Bangladesh ?

Description : Which species of Hydra is most abundant in Bangladesh ?

Last Answer : Hydra vulgaris is one of the most common species of Hydra in Bangladesh .