Description : Match the following and mark the correct options `{:("Animal","Repiratory organ"),("Earthworm", (i). "Moist cuticle"), ("Aquatic Arthropods", (ii). "G
Last Answer : Match the following and mark the correct options `{:("Animal","Repiratory organ"),("Earthworm", (i). "Moist cuticle") ... -iv D. A-I,B-ii,C-i,v, D-iii
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
Description : Which one of the following statements is incorrect? (a) The principle of countercurrent flow facilitates efficient respiration in gills of fishes. (b) The residual air in lungs slightly decreases the ... in birds. (d) In insects, circulating body fluids serve to distribute oxygen to tissues.
Last Answer : (b) The residual air in lungs slightly decreases the efficiency of respiration in mammals.
Description : 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 ( ... marine and have collared cells. (d) All mammals are viviparous and possess diaphragm for breathing.
Last Answer : (b) All bony fishes have four pairs of gills and an operculum on each side
Last Answer : (b) All bony fishes have four pairs of gills and an operculum on each side.
Description : Which one of the following statements about certain given animals is correct? (a) Roundworms (Aschelminthes) are pseudo- coelomates. (b) Molluscs are acoelomates. (c) Insects are pseudocoelomates. (d) Flatworms (Platyhelminthes) are
Last Answer : (a) Roundworms (Aschelminthes) are pseudo- coelomates.
Description : Presence of gills in the tadpole of frog indicates that (a) fish were amphibious in the past (b) fish evolved from frog-like ancestors (c) frogs will have gills in future (d) frogs evolved from gilled ancestors.
Last Answer : (d) frogs evolved from gilled ancestors.
Description : Two examples in which the nitrogenous wastes are excreted from body in the form of uric acid are (a) birds and lizards (b) frogs and cartilaginous fish (c) insects and bony fish (d) mammals and molluscs.
Last Answer : (a) birds and lizards
Description : Assertion : Annelids, arthropods, and molluscs are protostomial coelomates . Reason : All the three phyla include members with bilateral symmetry and
Last Answer : Assertion : Annelids, arthropods, and molluscs are protostomial coelomates . Reason : All the three ... . If both Assertion and Reason are false.
Description : Open circulatory system is the one in which blood does not circulate only inside blood vessels but it also falls in cavities that irrigate tissues. In the open circulatory system ... and protochordates have open circulatory system. The Circulatory System - Image Diversity: open circulatory system
Last Answer : What is a closed circulatory system?
Description : Mechanical digestion is the fragmentation of food aided by specialized physical structures, such as teeth, previous to extracellullar digestion. The mechanical fragmentation of food helps digestive ... there are mandibles and chewing muscles to triturate food previous to the chemical digestion.
Last Answer : Concerning extracellular digestion what is meant by chemical digestion?
Description : How can the endoskeleton of echinoderms be characterized in comparison to analogous structures present in vertebrates, arthropods and molluscs?
Last Answer : The echinoderm skeleton is internal, i.e., it is an endoskeleton. It is made of calcium carbonate (calcareous). Vertebrates also have internal skeleton made of bones and cartilages. Arthropods ... of chitin, a chitinous exoskeleton. Some molluscs present a calcareous shell that works as exoskeleton.
Last Answer : Oysters The gills Or Lungs With Respiration Done By
Description : Uricotelism is found in (a) mammals and birds (b) fish and fresh water protozoans (c) birds, land reptiles and insects (d) frogs and toads.
Last Answer : (c) birds, land reptiles and insects
Description : Choose the correct statement. (a) All mammals are viviparous. (b) All cyclostomes do not possess jaws and paired fins. (c) All reptiles have a three-chambered heart. (d) All pisces have gills covered by an operculum
Last Answer : (b) All cyclostomes do not possess jaws and paired fins.
Description : Given below is the representation of the extent of global diversity of invertebrates. What groups the four portions (A-D) represent respectively? A B C D A B C D (a) Insects Crusta- ... Molluscs Other Crusta- Insects animal ceans groups (d) Insects Molluscs Crusta- Other animal ceans groups
Last Answer : (d) Insects Molluscs Crusta- Other animal ceans groups
Description : How is the respiratory system in aquatic molluscs characterized? What adaptive respiratory structure do terrestrial molluscs present?
Last Answer : Aquatic molluscs oxygenate their blood through gills in direct contact with water. In terrestrial molluscs the rich vascularity under the mantle cavity absorbs air doing the role of a primitive lung. Mollusca - Image Diversity: mollusc respiratory system
Description : Which one of the following options gives the correct categorization of six animals according to the type of nitrogenous waste they give out? Ammonotelic Ureotelic Uricotelic (a) Pigeon, Aquatic ... amphibia humans lizards, cockroach (d) Aquatic Cockroach, Frog, pigeon, amphibia humans lizards
Last Answer : (d) Aquatic Cockroach, Frog, pigeon, amphibia humans lizards
Description : Which organs or respiratory adaptations do aquatic and terrestrial arthropods respectively present?
Last Answer : In crustaceans, typical aquatic beings, there are richly vascularized gills that make contact with water and permit gas exchange. In terrestrial insects the respiration is ... Phylum Arthropoda - Image Diversity: crustacean respiratory systeminsect respiratory system arachnid respiratory system
Description : Presence of gills in the tadpole of frog indicates that
Last Answer : Presence of gills in the tadpole of frog indicates that A. Fishes evolved from frog like ... ancsetors D. Fishes were amphibious in the past
Description : What is an example of freshwater flatworm? Due to that habitat what is the physiological problem that these animals must solve?
Last Answer : Platyhelminthes of freshwater, like planarias, have an internal environment much more concentrated in solutes than the exterior and so they present a tendency to gain water. These organisms then need ... have ciliated cells, the flame cells, that push water outside the body through excretory pores.
Description : How do most insects respire? (1) Through skin (2) Through gills (3) By tracheal system (4) By lungs
Last Answer : (3) By tracheal system Explanation: Insects do not have lungs to do respiration. In insects respiration takes place through tracheae. Tracheae are tube like structures that open on the sides of their body through tiny holes called spiracles.
Description : Amongst the animal groups given below, which one appears to be more vulnerable to extinction? A. Insects B. Mammals C. Amphibians D. Reptiles
Last Answer : C. Amphibians
Description : Aquatic reptiles are
Last Answer : Aquatic reptiles are A. Ammonotelic B. Ureotelic overland C. Ureotelic D. Ureotelic in water
Description : Aquatic reptiles are (a) ureotelic (b) ureotelic in water (c) ammonotelic (d) ureotelic over land
Last Answer : b) ureotelic in water
Description : Myrtecaine is study of – (1) Insects (2) Ants (3) Crustaceans (4) Arthropods
Last Answer : (2) Ants Explanation: Myrmecology is the scientific study of ants, a branch of entomology. The word myrniecology was coined by William Morton Wheeler (1865-1937), al-though human interest in the life of ants goes back further, with numerous ancient folk references.
Description : Myrmecology is study of (1) Insects (2) Ants (3) Crustaceans (4) Arthropods
Last Answer : Ants
Description : Classify the following animals are reptiles, mammals, birds and fish.
Last Answer : a) Blue whale----Mammals b) Cobra--------Reptile c) Panda--------Mammal d) Ostrich-------Bird e) Penguin------Bird f) Kiwi----------Bird g) Shark--------Fish h) Alligator -----Reptile i) Dolphin-------Mammal j) Tortoise------Reptile
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 : 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.
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 statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) ... Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.
Last Answer : (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.
Description : Uricotelic mode of excreting nitrogenous wastes is found in (a) reptiles and birds (b) birds and annelids (c) amphibians and reptiles (d) insects and amphibians.
Last Answer : (a) reptiles and birds
Description : Blubber is - (1) a milky secretion of rubber plant (2) a layer of thick fat (3) a device to trap insects by some aquatic (4) fungal infection of rice plants
Last Answer : (2) a layer of thick fat Explanation: Blubber is a thick layer of vascularized adipose tissue found under the skin. Lipid-rich, collagen fiberlaced blubber comprises the hypodermis and covers the whole body ... up to 50% of the body mass of some marine mammals during some points in their lives.
Description : Blubber is (1) a milky secretion of rubber plant (2) a layer of thick fat (3) a device to trap insects by some aquatic (4) fungal infection of rice plants
Last Answer : a layer of thick fat
Description : Will you live like a fish but without the gills?
Last Answer : I would love to do that. Where do I sign up?
Description : Fish respire through their (a) nose (b) lungs (c) gills (d) fins
Last Answer : Ans:(c)
Description : Through which organ does a fish respire? A. Nose B. Lungs C. Gills (Answer) D. Fins
Last Answer : C. Gills (Answer)
Description : Which is false regarding freshwater fish? a) their blood is hypertonic to their environment b) they often actively take up salt c) they excrete urine hypotonic to the blood d) their gills actively excrete salts
Last Answer : ANSWER: D -- THEIR GILLS ACTIVELY EXCRETE SALTS
Description : What flatworm lacks a digestive tract?
Last Answer : Need answer
Description : Anthelmintics are chemicals used to kill D A. Flatworm B. Tapeworm C. Roundworm D. All of above
Last Answer : All of above
Description : Can plants, insects, animals and fish suffer mental disorders?
Last Answer : Let’s ask them
Description : A heart with a single atrium and single ventricle is a characteristic of adult: a) amphibians b) arthropods c) birds d) fish
Last Answer : ANSWER: D -- FISH
Description : A closed circulatory system is one in which blood circulates only inside blood vessels. For this reason the blood pressure is higher in animals with closed circulatory system. The ... annelids, cephalopod molluscs and vertebrates. The Circulatory System - Image Diversity: closed circulatory system
Last Answer : What are the advantages of the closed circulatory system over the open circulatory system?
Description : Bryophytes are often called as amphibian plant because they : (1) appear like frog (2) are found both in water and on land (3) do not have habitat preference (4) can eat insects
Last Answer : (2) are found both in water and on land Explanation: Bryophytes are simple low growing plants, anchored to the ground or to tree bark by tiny filamentous rhizoids.
Last Answer : are found both in water and on land
Description : What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration ? -Biology
Last Answer : Aquatic organisms use oxygen dissolved in surrounding water. Since air dissolved in water has fairly low concentration of oxygen, the aquatic organisms have much faster rate of breathing. ... atmosphere through respiratory organs. Hence, they have much less breathing rate than aquatic organisms.
Description : $ Anarobic respiration occurs in the aquatic organisms. ! Aquatic organisms are never autotrophic.
Last Answer : $ Anarobic respiration occurs in the aquatic organisms. ! Aquatic organisms are never autotrophic. A. If both ... D. If both As and R are wrong.
Description : What is the type of circulatory system present in arthropods? Do these animals have heart and respiratory pigments?
Last Answer : In arthropods the respiratory system is open (lacunar). Blood, also known as hemolymph, is pumped by a heart and falls into cavities (lacunas) irrigating and draining tissues. All arthropods have ... blood does not carry gases (in them gases reach tissues and cells through tracheal structures).