General Knowledge
BIOLOGY MCQs
Total Questions : 1207
| Page 5 of 121 pages
Answer: Option B. -> WBC
When a foreign body inter into blood circulatory system the reaction is started by white blood cells.
When a foreign body inter into blood circulatory system the reaction is started by white blood cells.
Answer: Option C. -> Septum
A wall of muscle called the septum separates the left and right atria and the left and right ventricles.
A wall of muscle called the septum separates the left and right atria and the left and right ventricles.
Answer: Option D. -> 7.35-7.45
Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually the body maintains the pH of blood close to 7.40.
Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually the body maintains the pH of blood close to 7.40.
Answer: Option B. -> 4
Human heart has 4 chambers.
Human heart has 4 chambers.
Answer: Option A. -> Carries Oxygen
About 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.
About 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.
Answer: Option C. -> Sympatric
Two species occupying same or overlapping geographical areas are called as sympatric species.
The species occupying distinct geographical areas are called as allopatric species.
Two species occupying same or overlapping geographical areas are called as sympatric species.
The species occupying distinct geographical areas are called as allopatric species.
Answer: Option B. -> Nervous
The venom of elapids, including sea snakes, kraits, cobras, king cobra, mambas, and many Australian species, contains toxins which attack the nervous system, causing neurotoxicity. The person may present with strange disturbances to their vision, including blurriness.
The venom of elapids, including sea snakes, kraits, cobras, king cobra, mambas, and many Australian species, contains toxins which attack the nervous system, causing neurotoxicity. The person may present with strange disturbances to their vision, including blurriness.
Answer: Option B. -> Lentic
A pond or lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions. Pond and lake ecosystems are a prime example of lentic ecosystems. Lentic refers to stationary or relatively still water, from the Latin lentus, which means sluggish.
A pond or lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions. Pond and lake ecosystems are a prime example of lentic ecosystems. Lentic refers to stationary or relatively still water, from the Latin lentus, which means sluggish.
Answer: Option B. -> Pituitary
The pituitary gland, which hangs by a thin stalk from the hypothalamus, is called the master gland of the body because it regulates the activity of the endocrine glands.
The pituitary gland, which hangs by a thin stalk from the hypothalamus, is called the master gland of the body because it regulates the activity of the endocrine glands.
Answer: Option A. -> Calcitonin
Calcitonin is a hormone that is produced in humans by the parafollicular cells (commonly known as C-cells) of the thyroid gland. Calcitonin is involved in helping to regulate levels of calcium and phosphate in the blood, opposing the action of parathyroid hormone.
Calcitonin is a hormone that is produced in humans by the parafollicular cells (commonly known as C-cells) of the thyroid gland. Calcitonin is involved in helping to regulate levels of calcium and phosphate in the blood, opposing the action of parathyroid hormone.
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