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 : Features of an adult male frog. -Biology
Last Answer : answer:
Description : Nitrogenous waste products are eliminated mainly as (a) urea in tadpole and ammonia in adult frog (b) ammonia in tadpole and urea in adult frog (c) urea in both tadpole and adult frog (d) urea in tadpole and uric acid in adult frog.
Last Answer : (b) ammonia in tadpole and urea in adult frog
Description : The kidney of an adult frog is (a) metanephros (b) opisthonephros (c) pronephros (d) mesonephros.
Last Answer : (d) mesonephros.
Description : 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
Last Answer : (c) Nucleated RBCs
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 : Skin is an accessory organ of respiration in (a) humans (b) frog (c) rabbit (d) lizard.
Last Answer : (b) frog
Description : Compared to those of humans, the erythrocytes in frog are (a) without nucleus but with haemoglobin (b) nucleated and with haemoglobin (c) very much smaller and fewer (d) nucleated and without haemoglobin.
Last Answer : (b) nucleated and with haemoglobin
Description : Ommatidia serve the purpose of photoreception in (a) cockroach (b) frog (c) humans (d) sunflower.
Last Answer : (a) cockroach
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 : 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
Last Answer : (3) Nucleated and with haemoglobin
Description : 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 ... C D (a) T F F T (b) T T F F (c) F F T T (d) F T T F
Last Answer : (a) T F F T
Description : How many molar teeth are present in the upper jaw in adult humans. -Science-7
Last Answer : There are 6 molar teeth present in the upper jaw in adult humans.
Description : Assertion : Taenia solium is a cestode acquired by eating undercooked pork. Reason : Adult Taenia causes cysticercosis in humans.
Last Answer : Assertion : Taenia solium is a cestode acquired by eating undercooked pork. Reason : Adult Taenia ... D. If both Assertion and Reason are false.
Description : Brown adipose tissue is characterized by which of the following? (A) Present in large quantities in adult humans (B) Mitochondrial content higher than white adipose tissue (C) Oxidation and phosphorylation are tightly coupled (D) Absent in hibernating animals
Last Answer : Answer : B
Description : The infective stage to humans in schistosomiasis is (a) the adult (b) miracidum (c) Sporocyst (d) cercaria
Last Answer : (b) miracidum