Biology, 2018, JAMB Exam, Exam, Paper 1 | Objectives

Paper Info

Year :

2018

Title :

Biology

Exam :

JAMB Exam

Paper 1 | Objectives

61 - 70 of 90 Questions

#	Question	Ans
61.	The process in which plant uses sunlight to synthesize nutrients from carbon dioxide and water is called A. Locomotion B. Homeostasis C. Transpiration D. Photosynthesis Show Content Detailed Solution There is an explanation video available below.	D
62.	Cold blooded animals are referred to as A. Poikilothermic B. Homothermic C. Polythermic D. Homeostatic Show Content Detailed Solution Insects, fish, reptiles and amphibians are cold blooded because their body temperature changes along with the external temperature which are known as poikilothermic, while birds and mammals are warm blooded because they maintain a high body temperature regardless of the external temperature. A poikilothermic is an animal whose internal temperature varies considerably. It is the opposite of a homoeothermic, an animal which maintains thermal homeostasis There is an explanation video available below.	A
63.	The vessel carrying oxygenated blood to the tissues is A. Arteries B. Ventricles C. Aorta D. Lung Show Content Detailed Solution The arteries are perceived as carrying oxygenated blood to the tissues, There is an explanation video available below.	A
64.	Which of the following is a mixed gland A. Pituitary B. Adrenal C. Pancreas D. Thyroid Show Content Detailed Solution A mixed gland is a gland which has both endocrine and exocrine functions. The exocrine component has ducts, through which its secretions pass. The pancreas is a gland with both endocrine (insulin production) and exocrine (production of digestive enzymes) functions. There is an explanation video available below.	C
65.	A group of organism of the same species living together in a particular area is described as A. Colony B. Community C. Population D. Niche Show Content Detailed Solution Population is a group of organisms of the same species living in the same area at the same time, and which are capable of interbreeding. population is the right answer There is an explanation video available below.	C
66.	Tikka disease is related with the crop: A. Mustard B. Paddy C. Groundnut D. All of the above Show Content Detailed Solution Tikka Disease is a common disease in ground nut caused by Cercospora arachidicola and Cercospora personata. In the diseased condition, many circulars spots appear on the surface of the leaf . The conidia of the fungus present in soil or those present in the fruit shell is the source of infection There is an explanation video available below.	C
67.	At which stage in this cycle can a man be infected? A. 2 B. 4 C. 5 D. 6 Show Content Detailed Solution In the animal’s intestine, the oncospheres hatch, invade the intestinal wall, and migrate to the striated muscles, where they develop into cysticerci. A cysticercus can survive for several years in the animal. Humans become infected by ingesting raw or undercooked infected meat There is an explanation video available below.	B
68.	Total salt content in blood is about A. 1.85 to 1.9% B. 11.85 to 11.9% C. 2.85 to 2.9% D. 0.85 to 0.9% Show Content Detailed Solution total salt content of blood plasma is about 0.85 - 0.9% approximately There is an explanation video available below.	D
69.	The role of scolex in tapeworm is to A. excretion B. attachment to the host C. movement D. breathing Show Content Detailed Solution An adult tapeworm consists of a knoblike head, or scolex, equipped with hooks for attaching to the intestinal wall of the host (which may be a human), a neck region, and a series of flat, rectangular body segments, or proglottids, generated by the neck. scolex is used for attachment to the intestinal wall There is an explanation video available below.	B
70.	Which of the following animals is cold blooded A. Cat B. Lizard C. Whale D. Bird Show Content Detailed Solution Reptiles are cold-blooded animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. This is why most reptiles are found in hot or warm climates. Reptiles like snakes and lizards are this type of animal. Amphibians like frogs, toads, and salamanders are, too. Fish are also cold-blooded animals. Reptile is a cold blooded animal There is an explanation video available below.	B

61.	The process in which plant uses sunlight to synthesize nutrients from carbon dioxide and water is called A. Locomotion B. Homeostasis C. Transpiration D. Photosynthesis Show Content Detailed Solution There is an explanation video available below.	D
62.	Cold blooded animals are referred to as A. Poikilothermic B. Homothermic C. Polythermic D. Homeostatic Show Content Detailed Solution Insects, fish, reptiles and amphibians are cold blooded because their body temperature changes along with the external temperature which are known as poikilothermic, while birds and mammals are warm blooded because they maintain a high body temperature regardless of the external temperature. A poikilothermic is an animal whose internal temperature varies considerably. It is the opposite of a homoeothermic, an animal which maintains thermal homeostasis There is an explanation video available below.	A
63.	The vessel carrying oxygenated blood to the tissues is A. Arteries B. Ventricles C. Aorta D. Lung Show Content Detailed Solution The arteries are perceived as carrying oxygenated blood to the tissues, There is an explanation video available below.	A
64.	Which of the following is a mixed gland A. Pituitary B. Adrenal C. Pancreas D. Thyroid Show Content Detailed Solution A mixed gland is a gland which has both endocrine and exocrine functions. The exocrine component has ducts, through which its secretions pass. The pancreas is a gland with both endocrine (insulin production) and exocrine (production of digestive enzymes) functions. There is an explanation video available below.	C
65.	A group of organism of the same species living together in a particular area is described as A. Colony B. Community C. Population D. Niche Show Content Detailed Solution Population is a group of organisms of the same species living in the same area at the same time, and which are capable of interbreeding. population is the right answer There is an explanation video available below.	C

66.	Tikka disease is related with the crop: A. Mustard B. Paddy C. Groundnut D. All of the above Show Content Detailed Solution Tikka Disease is a common disease in ground nut caused by Cercospora arachidicola and Cercospora personata. In the diseased condition, many circulars spots appear on the surface of the leaf . The conidia of the fungus present in soil or those present in the fruit shell is the source of infection There is an explanation video available below.	C
67.	At which stage in this cycle can a man be infected? A. 2 B. 4 C. 5 D. 6 Show Content Detailed Solution In the animal’s intestine, the oncospheres hatch, invade the intestinal wall, and migrate to the striated muscles, where they develop into cysticerci. A cysticercus can survive for several years in the animal. Humans become infected by ingesting raw or undercooked infected meat There is an explanation video available below.	B
68.	Total salt content in blood is about A. 1.85 to 1.9% B. 11.85 to 11.9% C. 2.85 to 2.9% D. 0.85 to 0.9% Show Content Detailed Solution total salt content of blood plasma is about 0.85 - 0.9% approximately There is an explanation video available below.	D
69.	The role of scolex in tapeworm is to A. excretion B. attachment to the host C. movement D. breathing Show Content Detailed Solution An adult tapeworm consists of a knoblike head, or scolex, equipped with hooks for attaching to the intestinal wall of the host (which may be a human), a neck region, and a series of flat, rectangular body segments, or proglottids, generated by the neck. scolex is used for attachment to the intestinal wall There is an explanation video available below.	B
70.	Which of the following animals is cold blooded A. Cat B. Lizard C. Whale D. Bird Show Content Detailed Solution Reptiles are cold-blooded animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. This is why most reptiles are found in hot or warm climates. Reptiles like snakes and lizards are this type of animal. Amphibians like frogs, toads, and salamanders are, too. Fish are also cold-blooded animals. Reptile is a cold blooded animal There is an explanation video available below.	B

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