Q. Which type of muscle tissue is striated and under voluntary control? (2023)
A.
Smooth muscle
B.
Cardiac muscle
C.
Skeletal muscle
D.
Involuntary muscle
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Solution
Skeletal muscle is striated and is under voluntary control, allowing for movement of the skeleton.
Correct Answer: C — Skeletal muscle
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Q. Which type of muscle tissue is striated and voluntary? (2023)
A.
Smooth muscle
B.
Cardiac muscle
C.
Skeletal muscle
D.
All of the above
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Solution
Skeletal muscle is striated and under voluntary control, allowing for conscious movement.
Correct Answer: C — Skeletal muscle
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Q. Which type of neuron carries signals away from the central nervous system? (2021)
A.
Sensory neurons
B.
Motor neurons
C.
Interneurons
D.
Glial cells
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Solution
Motor neurons carry signals away from the central nervous system to muscles and glands.
Correct Answer: B — Motor neurons
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Q. Which type of noise is most commonly associated with communication systems?
A.
White noise
B.
Impulse noise
C.
Thermal noise
D.
Shot noise
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Solution
White noise is the most commonly associated noise in communication systems, affecting signal quality.
Correct Answer: A — White noise
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Q. Which type of orbit allows a satellite to cover the entire surface of the Earth over time?
A.
Geostationary orbit
B.
Polar orbit
C.
Circular orbit
D.
Elliptical orbit
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Solution
A polar orbit allows a satellite to pass over the entire surface of the Earth as the Earth rotates beneath it.
Correct Answer: B — Polar orbit
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Q. Which type of orbit allows a satellite to cover the entire surface of the Earth?
A.
Geostationary orbit
B.
Polar orbit
C.
Elliptical orbit
D.
Circular orbit
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Solution
A polar orbit allows a satellite to pass over the entire surface of the Earth as the Earth rotates beneath it.
Correct Answer: B — Polar orbit
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Q. Which type of orbit allows a satellite to pass over the same point on the Earth's surface at the same local solar time every day?
A.
Polar orbit
B.
Geostationary orbit
C.
Sun-synchronous orbit
D.
Elliptical orbit
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Solution
A sun-synchronous orbit allows a satellite to pass over the same point on the Earth's surface at the same local solar time every day, as it is synchronized with the Earth's position relative to the Sun.
Correct Answer: C — Sun-synchronous orbit
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Q. Which type of plant is known for having a dominant sporophyte generation? (2021)
A.
Mosses
B.
Liverworts
C.
Ferns
D.
Algae
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Solution
Ferns have a dominant sporophyte generation, which is the diploid phase of their life cycle.
Correct Answer: C — Ferns
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Q. Which type of plant is known for having a life cycle that alternates between haploid and diploid generations? (2021)
A.
Fungi
B.
Bryophytes
C.
Angiosperms
D.
All of the above
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Solution
All of the above groups exhibit a life cycle that alternates between haploid (gametophyte) and diploid (sporophyte) generations.
Correct Answer: D — All of the above
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Q. Which type of plant tissue is involved in the storage of food? (2023)
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Xylem
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Solution
Parenchyma tissue is primarily involved in the storage of food and can also perform photosynthesis.
Correct Answer: A — Parenchyma
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Q. Which type of plant tissue is responsible for growth? (2022)
A.
Parenchyma
B.
Collenchyma
C.
Meristematic tissue
D.
Sclerenchyma
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Solution
Meristematic tissue is responsible for the growth of plants as it contains undifferentiated cells that can divide.
Correct Answer: C — Meristematic tissue
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Q. Which type of plant tissue is responsible for the storage of food? (2023)
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Xylem
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Solution
Parenchyma tissue is primarily responsible for the storage of food and can also perform photosynthesis.
Correct Answer: A — Parenchyma
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Q. Which type of plant tissue provides support and flexibility? (2020)
A.
Parenchyma
B.
Collenchyma
C.
Sclerenchyma
D.
Xylem
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Solution
Collenchyma provides support and flexibility to the plant, especially in young stems and leaves.
Correct Answer: B — Collenchyma
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Q. Which type of pollination occurs when pollen is transferred from one flower to another flower of the same species? (2021)
A.
Self-pollination
B.
Cross-pollination
C.
Artificial pollination
D.
Wind pollination
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Solution
Cross-pollination occurs when pollen is transferred from one flower to another flower of the same species.
Correct Answer: B — Cross-pollination
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Q. Which type of pollination occurs when pollen is transferred from the anther to the stigma of the same flower? (2021)
A.
Cross-pollination
B.
Self-pollination
C.
Wind pollination
D.
Insect pollination
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Solution
Self-pollination occurs when pollen is transferred from the anther to the stigma of the same flower.
Correct Answer: B — Self-pollination
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Q. Which type of pollination occurs within the same flower? (2021)
A.
Cross-pollination
B.
Self-pollination
C.
Wind pollination
D.
Insect pollination
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Solution
Self-pollination occurs when pollen from the anther of a flower fertilizes the ovule of the same flower.
Correct Answer: B — Self-pollination
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Q. Which type of radiation consists of helium nuclei?
A.
Alpha radiation
B.
Beta radiation
C.
Gamma radiation
D.
X-rays
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Solution
Alpha radiation consists of helium nuclei, which are emitted during certain types of radioactive decay.
Correct Answer: A — Alpha radiation
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Q. Which type of radiation has the highest penetrating power? (2019)
A.
Alpha particles
B.
Beta particles
C.
Gamma rays
D.
Neutrons
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Solution
Gamma rays have the highest penetrating power among the types of radiation, able to pass through most materials.
Correct Answer: C — Gamma rays
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Q. Which type of reproduction involves the fusion of gametes? (2022)
A.
Asexual reproduction
B.
Vegetative propagation
C.
Sexual reproduction
D.
Budding
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Solution
Sexual reproduction involves the fusion of male and female gametes to form a zygote.
Correct Answer: C — Sexual reproduction
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Q. Which type of reproduction is characterized by the formation of a new organism from a part of the parent organism? (2023)
A.
Budding
B.
Binary fission
C.
Fragmentation
D.
All of the above
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Solution
All of the mentioned methods (budding, binary fission, and fragmentation) involve the formation of new organisms from parts of the parent.
Correct Answer: D — All of the above
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Q. Which type of reproduction is most common in fungi? (2023)
A.
Asexual reproduction
B.
Sexual reproduction
C.
Both asexual and sexual reproduction
D.
None of the above
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Solution
Fungi can reproduce both asexually (through spores) and sexually (through the fusion of hyphae).
Correct Answer: C — Both asexual and sexual reproduction
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Q. Which type of reproduction results in offspring that are genetically identical to the parent? (2022)
A.
Asexual reproduction
B.
Sexual reproduction
C.
Both asexual and sexual reproduction
D.
None of the above
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Solution
Asexual reproduction results in offspring that are genetically identical to the parent organism.
Correct Answer: A — Asexual reproduction
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Q. Which type of root system is characteristic of monocots? (2020)
A.
Tap root system
B.
Fibrous root system
C.
Adventitious root system
D.
Lateral root system
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Solution
Monocots typically have a fibrous root system, which consists of many thin roots that spread out.
Correct Answer: B — Fibrous root system
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Q. Which type of root system is characterized by a single main root with smaller lateral roots? (2020)
A.
Fibrous root system
B.
Tap root system
C.
Adventitious root system
D.
Modified root system
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Solution
A tap root system is characterized by a single main root that grows deeper into the soil with smaller lateral roots.
Correct Answer: B — Tap root system
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Q. Which type of satellite orbit is best for monitoring weather patterns?
A.
Geostationary orbit
B.
Polar orbit
C.
Elliptical orbit
D.
Low Earth orbit
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Solution
Geostationary satellites are ideal for monitoring weather patterns as they provide a constant view of the same area.
Correct Answer: A — Geostationary orbit
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Q. Which type of satellite orbit is best for weather monitoring?
A.
Geostationary orbit
B.
Polar orbit
C.
Elliptical orbit
D.
Low Earth orbit
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Solution
Geostationary orbits are ideal for weather monitoring as they provide a constant view of the same area of the Earth.
Correct Answer: A — Geostationary orbit
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Q. Which type of semiconductor has an excess of electrons?
A.
P-type
B.
N-type
C.
Intrinsic
D.
Extrinsic
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Solution
N-type semiconductors have an excess of electrons due to the addition of donor impurities.
Correct Answer: B — N-type
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Q. Which type of semiconductor is formed by doping silicon with phosphorus? (2020)
A.
p-type
B.
n-type
C.
Intrinsic
D.
Superconducting
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Solution
Doping silicon with phosphorus creates an n-type semiconductor due to the addition of extra electrons.
Correct Answer: B — n-type
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Q. Which type of solid has a definite melting point and is composed of molecules held together by van der Waals forces? (2022)
A.
Ionic solid
B.
Metallic solid
C.
Molecular solid
D.
Covalent solid
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Solution
Molecular solids are composed of molecules held together by van der Waals forces and have a definite melting point.
Correct Answer: C — Molecular solid
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Q. Which type of solid has a definite melting point? (2022)
A.
Amorphous solid
B.
Crystalline solid
C.
Polymeric solid
D.
Metallic solid
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Solution
Crystalline solids have a definite melting point due to their ordered structure, unlike amorphous solids which melt over a range of temperatures.
Correct Answer: B — Crystalline solid
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