Q. Which of the following is an example of convergent evolution in plants?
A.
Cacti and succulents
B.
Oak and maple trees
C.
Grasses and sedges
D.
Ferns and mosses
Show solution
Solution
Cacti and succulents are examples of convergent evolution, as they have developed similar adaptations to arid environments independently.
Correct Answer: A — Cacti and succulents
Learn More →
Q. Which of the following is an example of vegetative propagation?
A.
Seed germination
B.
Cutting a stem
C.
Pollination
D.
Fertilization
Show solution
Solution
Cutting a stem is a form of vegetative propagation, where a part of the plant is used to grow a new individual without the use of seeds.
Correct Answer: B — Cutting a stem
Learn More →
Q. Which of the following is NOT a characteristic of amphibians?
A.
Cold-blooded
B.
Moist skin
C.
Laying eggs in water
D.
Feathers
Show solution
Solution
Feathers are not a characteristic of amphibians; they are found in birds, which are a different class of animals.
Correct Answer: D — Feathers
Learn More →
Q. Which of the following is NOT a characteristic of angiosperms?
A.
Seeds enclosed in fruits
B.
Presence of flowers
C.
Vascular tissue
D.
Naked seeds
Show solution
Solution
Angiosperms have seeds enclosed in fruits, while naked seeds are characteristic of gymnosperms.
Correct Answer: D — Naked seeds
Learn More →
Q. Which of the following is NOT a characteristic of arthropods?
A.
Exoskeleton
B.
Jointed appendages
C.
Cold-blooded
D.
Vertebral column
Show solution
Solution
Arthropods do not have a vertebral column; they possess an exoskeleton and jointed appendages.
Correct Answer: D — Vertebral column
Learn More →
Q. Which of the following is NOT a characteristic of chordates?
A.
Notochord
B.
Dorsal nerve cord
C.
Pharyngeal slits
D.
Exoskeleton
Show solution
Solution
An exoskeleton is not a characteristic of chordates; they typically have an internal skeleton.
Correct Answer: D — Exoskeleton
Learn More →
Q. Which of the following is NOT a characteristic of dicotyledons?
A.
Two seed leaves
B.
Net-like leaf venation
C.
Floral parts in multiples of three
D.
Vascular bundles in a ring
Show solution
Solution
Dicotyledons typically have floral parts in multiples of four or five, not three.
Correct Answer: C — Floral parts in multiples of three
Learn More →
Q. Which of the following is NOT a characteristic of gymnosperms?
A.
Seed production
B.
Vascular tissue
C.
Flowers
D.
Naked seeds
Show solution
Solution
Gymnosperms do not produce flowers; they have naked seeds typically found in cones.
Correct Answer: C — Flowers
Learn More →
Q. Which of the following is NOT a characteristic of innate immunity?
A.
Rapid response
B.
Specificity for pathogens
C.
No memory
D.
Physical barriers
Show solution
Solution
Innate immunity is characterized by a rapid response and lack of specificity for pathogens, unlike adaptive immunity which is specific and has memory.
Correct Answer: B — Specificity for pathogens
Learn More →
Q. Which of the following is NOT a characteristic of mammals?
A.
Warm-blooded
B.
Hair or fur
C.
Laying eggs
D.
Mammary glands
Show solution
Solution
Mammals are characterized by live births and mammary glands; while some lay eggs, it is not a defining characteristic of all mammals.
Correct Answer: C — Laying eggs
Learn More →
Q. Which of the following is NOT a characteristic of Mendelian inheritance?
A.
Segregation of alleles
B.
Independent assortment
C.
Incomplete dominance
D.
Dominance
Show solution
Solution
Incomplete dominance is not a characteristic of Mendelian inheritance; it describes a situation where the phenotype is intermediate between the two parental traits.
Correct Answer: C — Incomplete dominance
Learn More →
Q. Which of the following is NOT a characteristic of monocots?
A.
Parallel leaf venation
B.
Flower parts in multiples of three
C.
Vascular bundles in a ring
D.
Single cotyledon
Show solution
Solution
Monocots have vascular bundles scattered throughout the stem, not in a ring.
Correct Answer: C — Vascular bundles in a ring
Learn More →
Q. Which of the following is NOT a characteristic of reptiles?
A.
Cold-blooded
B.
Lungs for respiration
C.
Feathers
D.
Scaly skin
Show solution
Solution
Feathers are not a characteristic of reptiles; they are found in birds, which are a separate class of animals.
Correct Answer: C — Feathers
Learn More →
Q. Which of the following is NOT a characteristic of sclerenchyma cells?
A.
Thick secondary walls
B.
Living at maturity
C.
Support and strength
D.
Lignified cell walls
Show solution
Solution
Sclerenchyma cells are typically dead at maturity, providing structural support with their thick, lignified walls.
Correct Answer: B — Living at maturity
Learn More →
Q. Which of the following is NOT a characteristic of the adaptive immune response?
A.
Specificity
B.
Memory
C.
Immediate response
D.
Clonal expansion
Show solution
Solution
The adaptive immune response is characterized by specificity, memory, and clonal expansion, but it is not immediate; it takes time to develop.
Correct Answer: C — Immediate response
Learn More →
Q. Which of the following is NOT a characteristic of the animal kingdom?
A.
Multicellularity
B.
Heterotrophy
C.
Cell walls
D.
Nervous system
Show solution
Solution
Animals do not have cell walls, which distinguishes them from plants and fungi.
Correct Answer: C — Cell walls
Learn More →
Q. Which of the following is NOT a characteristic of the Plantae kingdom?
A.
Eukaryotic cells
B.
Photosynthetic ability
C.
Heterotrophic nutrition
D.
Cellulose in cell walls
Show solution
Solution
Plantae are primarily autotrophic, meaning they produce their own food through photosynthesis.
Correct Answer: C — Heterotrophic nutrition
Learn More →
Q. Which of the following is NOT a characteristic used in plant classification?
A.
Leaf structure
B.
Flower color
C.
Root depth
D.
Plant height
Show solution
Solution
While leaf structure, flower color, and root depth are used in classification, plant height is not a primary characteristic.
Correct Answer: D — Plant height
Learn More →
Q. Which of the following is NOT a common application of plant biotechnology?
A.
Bioremediation
B.
Phytoremediation
C.
Plant breeding
D.
Plant taxonomy
Show solution
Solution
Plant taxonomy is the classification of plants and is not a direct application of plant biotechnology.
Correct Answer: D — Plant taxonomy
Learn More →
Q. Which of the following is NOT a component of a nucleotide?
A.
Phosphate group
B.
Nitrogenous base
C.
Amino group
D.
Deoxyribose sugar
Show solution
Solution
An amino group is not a component of a nucleotide; nucleotides consist of a phosphate group, a nitrogenous base, and a sugar.
Correct Answer: C — Amino group
Learn More →
Q. Which of the following is NOT a component of the innate immune system?
A.
Macrophages
B.
Natural killer cells
C.
Antibodies
D.
Complement proteins
Show solution
Solution
Antibodies are part of the adaptive immune system, while macrophages, natural killer cells, and complement proteins are components of the innate immune system.
Correct Answer: C — Antibodies
Learn More →
Q. Which of the following is NOT a component of the RNA structure?
A.
Ribose sugar
B.
Phosphate group
C.
Deoxyribose sugar
D.
Nitrogenous bases
Show solution
Solution
RNA contains ribose sugar, not deoxyribose, which is found in DNA.
Correct Answer: C — Deoxyribose sugar
Learn More →
Q. Which of the following is NOT a concern associated with the use of GMOs?
A.
Potential allergenicity
B.
Gene transfer to non-target species
C.
Increased crop resilience
D.
Loss of biodiversity
Show solution
Solution
Increased crop resilience is generally seen as a benefit, not a concern, of GMOs.
Correct Answer: C — Increased crop resilience
Learn More →
Q. Which of the following is NOT a division of the plant kingdom?
A.
Angiosperms
B.
Mosses
C.
Fungi
D.
Gymnosperms
Show solution
Solution
Fungi is not a division of the plant kingdom; it belongs to a separate kingdom.
Correct Answer: C — Fungi
Learn More →
Q. Which of the following is NOT a factor that drives plant evolution?
A.
Climate change
B.
Soil composition
C.
Human intervention
D.
Plant aesthetics
Show solution
Solution
Plant aesthetics is not a driving factor of evolution; rather, it is influenced by evolutionary processes.
Correct Answer: D — Plant aesthetics
Learn More →
Q. Which of the following is NOT a function of plant tissues?
A.
Photosynthesis
B.
Transport of water
C.
Respiration
D.
Storage of nutrients
Show solution
Solution
While plant tissues are involved in various functions, respiration is primarily a cellular process, not a tissue function.
Correct Answer: C — Respiration
Learn More →
Q. Which of the following is NOT a function of the digestive system?
A.
Digestion of food
B.
Absorption of nutrients
C.
Regulation of body temperature
D.
Elimination of waste
Show solution
Solution
Regulation of body temperature is not a function of the digestive system.
Correct Answer: C — Regulation of body temperature
Learn More →
Q. Which of the following is NOT a function of the placenta?
A.
Nutrient transfer
B.
Gas exchange
C.
Hormone production
D.
Fertilization
Show solution
Solution
Fertilization occurs in the fallopian tubes, not in the placenta, which is responsible for nutrient transfer, gas exchange, and hormone production.
Correct Answer: D — Fertilization
Learn More →
Q. Which of the following is NOT a function of the stomach?
A.
Digestion of proteins
B.
Storage of food
C.
Absorption of nutrients
D.
Secretion of gastric acid
Show solution
Solution
The stomach primarily digests proteins and stores food, but it does not absorb nutrients.
Correct Answer: C — Absorption of nutrients
Learn More →
Q. Which of the following is NOT a macronutrient essential for plant growth?
A.
Nitrogen
B.
Phosphorus
C.
Potassium
D.
Iron
Show solution
Solution
Iron is a micronutrient, while nitrogen, phosphorus, and potassium are macronutrients.
Correct Answer: D — Iron
Learn More →
Showing 1111 to 1140 of 1474 (50 Pages)