Tag: science & technology

When haystacks are combined, they merge into one larger haystack. 5 haystacks + 4 haystacks placed together = 1 large haystack, not 9 separate ones.

The adult human brain weighs approximately 1.3-1.4 kg, which is roughly 3 pounds. Options A (1 pound), C (5 pounds), and D (7 pounds) are all incorrect - the brain is heavier than 1 pound but much lighter than 5-7 pounds.

The human brain consists of white matter (myelinated axons) and grey matter (neuron cell bodies and unmyelinated fibers). Options A, B, and D are all incorrect - those are not actual biological components of brain tissue.

The human brain floats in cerebrospinal fluid (CSF), which cushions it within the skull. Options B (Spinal tab), C (Brain cocktail), and D (Parietal Fluid) are all fictional or incorrect terms.

Ancient Egyptians removed the brain through the nose using hooks during mummification and discarded it, considering it unimportant compared to the heart. Options A, C, and D are incorrect - they didn't eat it, preserve it, or remain ignorant of its existence.

The medulla oblongata controls autonomic functions including respiration, heart rate, and blood pressure. Options A (cerebellum - coordination/balance), C (cerebrum - higher cognition), and D (occipital lobe - vision) serve different functions.

The human brain can survive without oxygen for approximately 4-6 minutes before permanent damage occurs. Options B (5 minutes), C (2-3 minutes), and D (78 seconds) are all incorrect - they're either too narrow or below the survival threshold.

The parietal lobe processes spatial orientation and spatial relationships, though speech and language primarily involve frontal (Broca's area) and temporal (Wernicke's area) lobes. The question overstates the parietal lobe's role in speech/language development.

The pituitary gland is called the 'master gland' because it produces hormones that regulate other endocrine glands in the body. Puny gland and pleasure gland are made-up terms, while major gland is not a recognized alternative name.

The autonomic nervous system controls involuntary survival functions like breathing, heart rate, and digestion. The central nervous system consists of brain and spinal cord, peripheral connects CNS to the body, and somatic controls voluntary muscle movements.