Plant cells can usually be distinguished because only plant cells possess
(a) Cell walls and mitochondria
(b) Golgi bodies and central vacuoles
(c) Cell walls and central vacuoles-✔️
(d) Chromosomes and mitochondria
Persons with which blood group are called universal donors?
(a) AB
(b) A
(c) O-✔️
(d) B
Workers of paint industry are exposed to which one of the following hazards?
(a) Nickel pollution
(b) Cadmium pollution
(c) Strontium pollution
(d) Lead pollution-✔️
With reference to the work of human kidney, consider the following statement:
1 After the waste is remove in the kidney, the clear blood is sent back through renal artery.
2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the gluclose is reabsorbed and sent back to the blood in the renal vein. Which of the following is/are correct?
(a) Only 1.
(b) Only 2.
(c) Both 1 & 2
(d) Neither 1 nor 2-✔️
With reference to the evolution of living organisms, which one of the following sequences is correct?
(a) Octopus - Dolphin - Shark
(b) Pangolin - Tortoise - Hawk
(c) Salamander - Python – Kangaroo-✔️
(d) Frog - Crab - Prawn
With reference to normal human beings consider the following statements:
1. In response to the presence of HCL, secretin is produced from the duodenum.
2. Enterogastrone is produced in the small intestine in response to the presence of fatty acids.
Which of the statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 & 2-✔️
(d) Neither 1 nor 2
Winds and air currents differ in the aspect that
(a) air currents blow much faster than winds
(b) air currents are always moisture laden while winds are usually dry
(c) the winds blow on lands while air currents blow over seas and oceans
(d) winds are horizontal movements of air while air currents are the vertical movements of air-✔️
WiMAX is related to which one of the following?
(a) Biotechnology
(b) Space technology
(c) Missile technology
(d) Communication technology-✔️
Why is it difficult to see through fog?
(a) Rays of light suffer total internal reflection from the fog droplets
(b) Rays of light are scattered by the fog droplets-✔️
(c) Fog droplets absorb light
(d) The refractive index of fog is extremely High
Who was the first scientist to use an instrument for biological studies in 1665?
(a) Robert Hooke-✔️
(b) Schwann
(c) Schleiden
(d) None of the above
(a) Cell walls and mitochondria
(b) Golgi bodies and central vacuoles
(c) Cell walls and central vacuoles-✔️
(d) Chromosomes and mitochondria
Persons with which blood group are called universal donors?
(a) AB
(b) A
(c) O-✔️
(d) B
Workers of paint industry are exposed to which one of the following hazards?
(a) Nickel pollution
(b) Cadmium pollution
(c) Strontium pollution
(d) Lead pollution-✔️
With reference to the work of human kidney, consider the following statement:
1 After the waste is remove in the kidney, the clear blood is sent back through renal artery.
2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the gluclose is reabsorbed and sent back to the blood in the renal vein. Which of the following is/are correct?
(a) Only 1.
(b) Only 2.
(c) Both 1 & 2
(d) Neither 1 nor 2-✔️
With reference to the evolution of living organisms, which one of the following sequences is correct?
(a) Octopus - Dolphin - Shark
(b) Pangolin - Tortoise - Hawk
(c) Salamander - Python – Kangaroo-✔️
(d) Frog - Crab - Prawn
With reference to normal human beings consider the following statements:
1. In response to the presence of HCL, secretin is produced from the duodenum.
2. Enterogastrone is produced in the small intestine in response to the presence of fatty acids.
Which of the statements is/are correct?
(a) Only 1
(b) Only 2
(c) Both 1 & 2-✔️
(d) Neither 1 nor 2
Winds and air currents differ in the aspect that
(a) air currents blow much faster than winds
(b) air currents are always moisture laden while winds are usually dry
(c) the winds blow on lands while air currents blow over seas and oceans
(d) winds are horizontal movements of air while air currents are the vertical movements of air-✔️
WiMAX is related to which one of the following?
(a) Biotechnology
(b) Space technology
(c) Missile technology
(d) Communication technology-✔️
Why is it difficult to see through fog?
(a) Rays of light suffer total internal reflection from the fog droplets
(b) Rays of light are scattered by the fog droplets-✔️
(c) Fog droplets absorb light
(d) The refractive index of fog is extremely High
Who was the first scientist to use an instrument for biological studies in 1665?
(a) Robert Hooke-✔️
(b) Schwann
(c) Schleiden
(d) None of the above
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