Science and Technology Fundamentals

All listed options relate to connective tissue. Collagen is the primary structural protein found throughout connective tissues, cartilage is a flexible connective tissue found in joints and respiratory structures, and bone is a rigid connective tissue forming the skeleton. Therefore, none of these is NOT a connective tissue.

Blood is classified as a fluid connective tissue because it consists of cells (red blood cells, white blood cells, platelets) suspended in a fluid matrix (plasma). Its liquid state does not disqualify it from being a tissue. Connective tissues are defined by having cells in an extracellular matrix, which blood satisfies.

The brain performs all three functions: thinking and learning through cognitive processing in the cerebral cortex; receiving and interpreting sensory information from all senses; and controlling voluntary movements by sending motor signals through the nervous system. These are core functions of the central nervous system.

Salamanders are amphibians, belonging to a different vertebrate class than mammals. Armadillos, shrews (misspelled as 'Schrew'), and bats are all mammals that share characteristics like hair/fur and mammary glands. Salamanders have moist skin and typically undergo metamorphosis from aquatic larvae.

Birds evolved from theropod dinosaurs during the Jurassic period, specifically from the maniraptoran group. This evolutionary relationship is supported by numerous fossil discoveries including Archaeopteryx and many feathered dinosaur species. Birds share anatomical features with dinosaurs including hollow bones, wishbones, and scaled legs.

Birds are endothermic, meaning they generate internal heat through metabolic processes to maintain a constant body temperature regardless of environmental conditions. This contrasts with ectothermic animals like reptiles that rely on external heat sources. 'Endothermic' literally means 'heat from within.'

The candela (cd) is the SI base unit for luminous intensity, which measures the power of light emitted in a particular direction. Decibel measures sound intensity, Pascal measures pressure, and Coulomb measures electric charge. Only candela is related to light measurement.

The mole (mol) is the SI base unit for amount of substance, used to measure the quantity of chemical entities. Erg measures energy, quintal measures mass (a unit of weight), and light-year measures distance. Only mole is correct for amount of substance.

Power can be measured in both Watts (the SI unit) and Horse Power (a non-SI unit still widely used, especially for engines and vehicles). 1 horsepower ≈ 746 watts. Pascal measures pressure, and Lambert measures luminous intensity or brightness. Both B and D are correct for this MC-2 question.

Gauss is the unit of magnetic induction (also called magnetic flux density) in the CGS system. It measures the strength of a magnetic field. Electric flux is measured in units like Maxwell or Weber·m², stellar distance in parsecs or light-years, and luminous intensity in candela. Only option A is correct.

Venus is the only planet in our solar system that rotates clockwise (retrograde rotation), meaning it spins in the opposite direction from most planets including Earth. This retrograde rotation is a unique characteristic of Venus, though Uranus's extreme axial tilt complicates the directional description.

Toronto became the first city in the world to implement a computerized traffic signal system in 1963. This innovation used a central computer to coordinate traffic lights across the city, improving traffic flow and reducing congestion.

Charles Babbage is widely regarded as the Father of Computers for designing the Difference Engine and Analytical Engine in the 19th century, which laid the theoretical groundwork for modern computers. John Graham and Wilhelm Schickard were not primarily known as computer pioneers, and 'none of these' is incorrect since Babbage is the correct answer.

A standard PC keyboard typically has 104 keys, which includes the standard alphanumeric keys, function keys, navigation keys, and numeric keypad. This is the industry standard for full-size keyboards, though specialized keyboards may vary.

iPod Atomic was never an actual iPod model line. The real iPod series include iPod Mini, iPod Nano, iPod Shuffle, iPod Classic, and iPod Touch. 'iPod Atomic' is the correct answer as it's the fabricated option.

CDRAM (Cache DRAM) is not a standard type of computer RAM. The common RAM types include DDR I, DDR II, DDR3, DDR4, and SDRAM (Synchronous DRAM). CDRAM is the correct answer as it's not a standard RAM category.

Page faults occur when the system needs to access data that has been moved from RAM to virtual memory on disk. While the question states 'due to RAM,' it's more accurate to say page faults occur due to insufficient RAM or the virtual memory paging system. However, given the options, RAM is the best answer as PROM, ROM, and CD R/W are not involved in virtual memory management.

In metal cutting operations, chips are formed primarily due to shear deformation. The cutting tool applies force that causes the material to shear along a shear plane, creating chips that curl and break away. Linear deformation and translation are not the primary mechanisms.

A combination set is a precision measuring tool that can check angular surfaces, but it cannot draw circles or scribe lines. Option D 'all of these' is incorrect because the tool's capabilities are limited to measurement and checking functions, not marking or drawing.

Bernoulli's equation cannot be applied when the flow is turbulent because the equation assumes steady, inviscid, and irrotational flow. Turbulent flow involves chaotic motion and energy dissipation that violate these fundamental assumptions. While rotational and unsteady flows also have limitations, turbulent flow is the most definitive exclusion.