Undergraduate
Q. What is the sum of the coefficients in the expansion of (x + 2)^5? (2021)
Solution
The sum of the coefficients is found by substituting x=1. So, (1 + 2)^5 = 3^5 = 243.
Correct Answer: B — 64
Learn More →
Q. What is the sum of the complex numbers 3 + 2i and 1 - 4i? (2023)
-
A.
4 - 2i
-
B.
2 - 2i
-
C.
4 + 2i
-
D.
2 + 2i
Solution
(3 + 2i) + (1 - 4i) = (3 + 1) + (2 - 4)i = 4 - 2i.
Correct Answer: A — 4 - 2i
Learn More →
Q. What is the sum of the roots of the equation 2x² - 4x + 1 = 0? (2023)
Solution
The sum of the roots is given by -b/a = 4/2 = 2.
Correct Answer: A — 2
Learn More →
Q. What is the sum of the roots of the equation 3x² + 12x + 9 = 0? (2021)
Solution
The sum of the roots is given by -b/a = -12/3 = -4.
Correct Answer: A — -4
Learn More →
Q. What is the symbol for Gold?
Solution
The symbol for Gold is Au.
Correct Answer: A — Au
Learn More →
Q. What is the temperature in Celsius if the temperature in Kelvin is 273 K?
-
A.
0°C
-
B.
100°C
-
C.
-273°C
-
D.
273°C
Solution
To convert Kelvin to Celsius, use the formula: °C = K - 273. Therefore, 273 K - 273 = 0°C.
Correct Answer: A — 0°C
Learn More →
Q. What is the temperature of a gas in Kelvin if its temperature in Celsius is 25°C? (2019)
-
A.
273 K
-
B.
298 K
-
C.
310 K
-
D.
325 K
Solution
Temperature in Kelvin (K) = Temperature in Celsius (°C) + 273.15 = 25 + 273.15 = 298.15 K.
Correct Answer: B — 298 K
Learn More →
Q. What is the term containing x^2 in the expansion of (3x - 4)^6?
-
A.
-1440
-
B.
720
-
C.
-720
-
D.
1440
Solution
The term containing x^2 is given by C(6,2) * (3x)^2 * (-4)^(6-2) = 15 * 9 * 256 = -1440.
Correct Answer: A — -1440
Learn More →
Q. What is the term containing x^2 in the expansion of (x + 4)^6?
-
A.
240
-
B.
360
-
C.
480
-
D.
600
Solution
The term containing x^2 is given by C(6,2) * (4)^4 * (x)^2 = 15 * 256 * x^2 = 3840.
Correct Answer: C — 480
Learn More →
Q. What is the term for a flower with both male and female reproductive structures? (2019)
-
A.
Unisexual
-
B.
Bisexual
-
C.
Asexual
-
D.
Monoecious
Solution
A bisexual flower contains both male (stamens) and female (pistils) reproductive structures.
Correct Answer: B — Bisexual
Learn More →
Q. What is the term for a solution that contains the maximum amount of solute that can dissolve at a given temperature? (2022)
-
A.
Unsaturated solution
-
B.
Saturated solution
-
C.
Supersaturated solution
-
D.
Concentrated solution
Solution
A saturated solution is one that contains the maximum amount of solute that can dissolve at a specific temperature.
Correct Answer: B — Saturated solution
Learn More →
Q. What is the term for an organism that has two identical alleles for a trait? (2022)
-
A.
Heterozygous
-
B.
Homozygous
-
C.
Dominant
-
D.
Recessive
Solution
An organism with two identical alleles for a trait is called homozygous.
Correct Answer: B — Homozygous
Learn More →
Q. What is the term for an organism's genetic makeup? (2022)
-
A.
Phenotype
-
B.
Genotype
-
C.
Allele
-
D.
Trait
Solution
The genetic makeup of an organism is referred to as its genotype.
Correct Answer: B — Genotype
Learn More →
Q. What is the term for species that are found nowhere else on Earth? (2022)
-
A.
Endemic species
-
B.
Invasive species
-
C.
Keystone species
-
D.
Threatened species
Solution
Endemic species are those that are found nowhere else on Earth and are often vulnerable to extinction.
Correct Answer: A — Endemic species
Learn More →
Q. What is the term for species that are found only in a specific geographic area? (2020)
-
A.
Endemic species
-
B.
Invasive species
-
C.
Keystone species
-
D.
Indicator species
Solution
Endemic species are those that are found only in a specific geographic area.
Correct Answer: A — Endemic species
Learn More →
Q. What is the term for the ability of a muscle to respond to a stimulus? (2023)
-
A.
Contractility
-
B.
Excitability
-
C.
Extensibility
-
D.
Elasticity
Solution
Excitability refers to the ability of a muscle to respond to a stimulus, such as a nerve impulse.
Correct Answer: B — Excitability
Learn More →
Q. What is the term for the arrangement of flowers on a stem? (2023)
-
A.
Inflorescence
-
B.
Peduncle
-
C.
Receptacle
-
D.
Calyx
Solution
Inflorescence refers to the arrangement of flowers on a stem.
Correct Answer: A — Inflorescence
Learn More →
Q. What is the term for the development of an organism from an egg? (2023)
-
A.
Embryogenesis
-
B.
Metamorphosis
-
C.
Germination
-
D.
Fertilization
Solution
Embryogenesis is the process of development of an organism from a fertilized egg.
Correct Answer: A — Embryogenesis
Learn More →
Q. What is the term for the division of the cytoplasm during cell division? (2020)
-
A.
Mitosis
-
B.
Cytokinesis
-
C.
Interphase
-
D.
Telophase
Solution
Cytokinesis is the process that divides the cytoplasm of a parental cell into two daughter cells.
Correct Answer: B — Cytokinesis
Learn More →
Q. What is the term for the energy required to change a substance from solid to liquid?
-
A.
Heat of fusion
-
B.
Heat of vaporization
-
C.
Sublimation energy
-
D.
Latent heat
Solution
The heat of fusion is the energy required to change a substance from solid to liquid.
Correct Answer: A — Heat of fusion
Learn More →
Q. What is the term for the energy required to separate an adsorbate from an adsorbent? (2023)
-
A.
Adsorption energy
-
B.
Desorption energy
-
C.
Activation energy
-
D.
Bond energy
Solution
Desorption energy is the energy required to separate an adsorbate from an adsorbent.
Correct Answer: B — Desorption energy
Learn More →
Q. What is the term for the evolutionary process where one species evolves into multiple species to adapt to different environments?
-
A.
Adaptive Radiation
-
B.
Convergent Evolution
-
C.
Divergent Evolution
-
D.
Speciation
Solution
Adaptive radiation is the evolutionary process where one ancestral species diversifies into multiple species to adapt to various environments.
Correct Answer: A — Adaptive Radiation
Learn More →
Q. What is the term for the exchange of gases between the blood and body cells? (2023)
-
A.
External respiration
-
B.
Internal respiration
-
C.
Cellular respiration
-
D.
Pulmonary ventilation
Solution
Internal respiration refers to the exchange of gases between the blood and body cells, where oxygen is delivered and carbon dioxide is removed.
Correct Answer: B — Internal respiration
Learn More →
Q. What is the term for the extinction of a species in a specific habitat while it still exists in other areas? (2020)
-
A.
Global extinction
-
B.
Local extinction
-
C.
Mass extinction
-
D.
Endemic extinction
Solution
Local extinction refers to the extinction of a species in a specific habitat while it still exists in other areas.
Correct Answer: B — Local extinction
Learn More →
Q. What is the term for the female reproductive part of a flower? (2022)
-
A.
Stamen
-
B.
Pistil
-
C.
Petal
-
D.
Sepal
Solution
The pistil is the female reproductive part of the flower, consisting of the ovary, style, and stigma.
Correct Answer: B — Pistil
Learn More →
Q. What is the term for the female reproductive part of the flower? (2022)
-
A.
Stamen
-
B.
Pistil
-
C.
Anther
-
D.
Filament
Solution
The pistil is the female reproductive part of the flower, consisting of the stigma, style, and ovary.
Correct Answer: B — Pistil
Learn More →
Q. What is the term for the formation of new species through evolution? (1942)
-
A.
Speciation
-
B.
Adaptation
-
C.
Extinction
-
D.
Migration
Solution
Speciation is the process through which new species arise from existing species due to evolutionary changes.
Correct Answer: A — Speciation
Learn More →
Q. What is the term for the formation of new species? (2005)
-
A.
Speciation
-
B.
Adaptation
-
C.
Extinction
-
D.
Migration
Solution
Speciation is the evolutionary process by which new biological species arise.
Correct Answer: A — Speciation
Learn More →
Q. What is the term for the fusion of male and female gametes? (2020)
-
A.
Pollination
-
B.
Fertilization
-
C.
Germination
-
D.
Mitosis
Solution
Fertilization is the process where the male and female gametes fuse to form a zygote.
Correct Answer: B — Fertilization
Learn More →
Q. What is the term for the fusion of sperm and egg? (2019)
-
A.
Fertilization
-
B.
Implantation
-
C.
Ovulation
-
D.
Gestation
Solution
Fertilization is the term used for the fusion of sperm and egg, leading to the formation of a zygote.
Correct Answer: A — Fertilization
Learn More →
Showing 2491 to 2520 of 3756 (126 Pages)