Q21. Which field of study focuses on the statistical study of populations, including birth rates, death rates, and migration?
a) Demography
b) Diffusion
c) Dermatology
d) Dendrochronology
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Correct Answer: a) Demography
Explanation: Demography involves the statistical study of populations, including factors such as birth rates, death rates, and migration patterns, aiding in understanding population dynamics and trends.
Q22. What term refers to the process by which particles move from an area of higher concentration to an area of lower concentration?
a) Demography
b) Diffusion
c) Dermatology
d) Dendrochronology
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Correct Answer: b) Diffusion
Explanation: Diffusion is the passive movement of particles from regions of higher concentration to regions of lower concentration, driven by the random motion of particles.
Q23. Which branch of medicine deals with the study and treatment of skin disorders?
a) Embryology
b) Dermatology
c) Ecology
d) Eugenics
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Correct Answer: b) Dermatology
Explanation: Dermatology focuses on the diagnosis and treatment of skin disorders, ranging from common conditions like acne to serious diseases like melanoma.
Q24. What field of study involves the dating of tree rings to determine past climatic conditions and environmental changes?
a) Embryology
b) Euthenics
c) Ethnology
d) Dendrochronology
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Correct Answer: d) Dendrochronology
Explanation: Dendrochronology is the science of dating tree rings to analyze past climates, environmental changes, and archaeological dating.
Q25. Which scientific discipline focuses on the relationships between organisms and their environments?
a) Ecology
b) Evolution
c) Entomology
d) Etiology
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Correct Answer: a) Ecology
Explanation: Ecology is the study of the relationships between organisms and their environments, encompassing both living and non-living factors.
Q26. What is the process by which species gradually change over time called?
a) Embryology
b) Eugenics
c) Evolution
d) Euthenics
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Correct Answer: c) Evolution
Explanation: Evolution is the gradual change in species over time through natural selection, mutation, and other mechanisms, leading to biodiversity and adaptation.
Q27. Which branch of biology involves the study of the development of embryos and fetuses?
a) Embryology
b) Ethology
c) Etiology
d) Entomology
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Correct Answer: a) Embryology
Explanation: Embryology focuses on the study of the development of embryos and fetuses from fertilization to birth, encompassing various stages of growth and differentiation.
Q28. What field of study concerns the improvement of the genetic quality of the human population through selective breeding?
a) Eugenics
b) Euthenics
c) Ethnology
d) Exobiology
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Correct Answer: a) Eugenics
Explanation: Eugenics is the study or belief in the possibility of improving the genetic quality of the human population through selective breeding.
Q29. What term refers to the study of the improvement of human well-being through environmental manipulation?
a) Euthenics
b) Euphenics
c) Ethnology
d) Ethology
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Correct Answer: a) Euthenics
Explanation: Euthenics focuses on the improvement of human well-being through environmental manipulation, emphasizing social, economic, and environmental factors.
Q30. Which branch of science studies the influence of external factors on the genetic expression and physical traits of organisms?
a) Euthenics
b) Euphenics
c) Ethnology
d) Ethology
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Correct Answer: b) Euphenics
Explanation: Euphenics examines the impact of external factors on the genetic expression and physical traits of organisms, contributing to the understanding of gene-environment interactions.