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Current Affairs January 2024

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Which of the following is a direct benefit of biodiversity to humans?

A. Increased greenhouse gas emissions

B. Decreased agricultural productivity

C. Development of new medicines

D. Soil erosion

Correct Answer :

C. Development of new medicines


Related Questions

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Which organelle is responsible for protein synthesis?

A. Golgi apparatus

B. Ribosome

C. Endoplasmic reticulum

D. Lysosome

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Which type of survivorship curve is characterized by a high mortality rate in early life, followed by high survivorship in later life?

A. Type I

B. Type II

C. Type III

D. Type IV

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What is the primary pigment responsible for photosynthesis in plants?

A. Chlorophyll

B. Carotene

C. Xanthophyll

D. Phycobilin

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What is the term for a disease-causing microorganism?

A. Antibiotic

B. Parasite

C. Pathogen

D. Virus

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Which type of learning occurs when an animal associates a neutral stimulus with a meaningful stimulus to produce a response?

A. Classical conditioning

B. Operant conditioning

C. Habituation

D. Imprinting

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The study of the geographic distribution of species is known as:

A. Biogeography

B. Ecology

C. Ethology

D. Taxonomy

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Which of Mendel's laws states that alleles for different genes segregate independently during gamete formation?

A. Law of Dominance

B. Law of Independent Assortment

C. Law of Segregation

D. Law of Inheritance

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What is the function of the pancreas in the human body?

A. Digestion of proteins

B. Regulation of blood sugar levels

C. Filtration of blood

D. Production of bile

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What type of plant tissue is responsible for transporting water and nutrients throughout the plant?

A. Epidermis

B. Xylem

C. Phloem

D. Cortex

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What is the term for the process by which two unrelated species evolve similar traits in response to similar environmental pressures?

A. Natural selection

B. Convergent evolution

C. Artificial selection

D. Coevolution

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Which of the following is NOT part of the human digestive system?

A. Stomach

B. Liver

C. Kidney

D. Small intestine

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Which term refers to structures that have no apparent function but resemble functional structures in other organisms?

A. Homologous structures

B. Analogous structures

C. Vestigial structures

D. Adaptive structures

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What is the role of the hypothalamus in the human brain?

A. Coordination of muscle movements

B. Regulation of body temperature and hormone secretion

C. Memory storage

D. Visual processing

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The relationship between a bee and a flower, where the bee obtains nectar and pollen while aiding in pollination, is an example of:

A. Mutualism

B. Parasitism

C. Competition

D. Commensalism

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What is the largest organ in the human body?

A. Brain

B. Liver

C. Skin

D. Heart

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What is the function of the human respiratory system?

A. Regulation of blood sugar levels

B. Transportation of oxygen and carbon dioxide

C. Digestion of food

D. Filtration of blood

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What is the process by which plants respond to light and grow toward it called?

A. Phototropism

B. Gravitropism

C. Thigmotropism

D. Hydrotropism

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What is the term for the physical appearance of an organism based on its genetic makeup?

A. Genotype

B. Phenotype

C. Allele

D. Homozygote

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What is the term for a change in the sequence of DNA that can be passed on to offspring?

A. Gene flow

B. Genetic drift

C. Mutation

D. Natural selection

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What is the function of the human liver?

A. Filtration of blood

B. Regulation of blood sugar levels

C. Production of bile and detoxification

D. Transport of oxygen

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Which cell organelle contains digestive enzymes and is involved in cellular waste disposal?

A. Mitochondria

B. Nucleus

C. Lysosome

D. Chloroplast

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What is the name of the enzyme that unwinds and separates the DNA strands during replication?

A. RNA polymerase

B. Ligase

C. Helicase

D. Polymerase chain reaction (PCR)

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What is the term for the maximum number of individuals of a species that an ecosystem can support indefinitely?

A. Carrying capacity

B. Population density

C. Limiting factor

D. Exponential growth

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Which of the following is a sex-linked genetic disorder?

A. Huntington's disease

B. Down syndrome

C. Hemophilia

D. Cystic fibrosis

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What is the term for a virus that infects bacteria?

A. Bacteriophage

B. Retrovirus

C. Prion

D. Viroid

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What is the term for the process by which an animal forms a social attachment to another object or organism, often occurring shortly after birth?

A. Conditioning

B. Habituation

C. Reflex

D. Imprinting

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What is the term for the process by which an embryo implants itself in the uterine lining and begins to develop?

A. Ovulation

B. Fertilization

C. Implantation

D. Menstruation

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Which blood vessels carry oxygenated blood away from the heart to the body's tissues?

A. Veins

B. Arteries

C. Capillaries

D. Venules

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Which type of muscle is responsible for voluntary movements in the body?

A. Smooth muscle

B. Cardiac muscle

C. Skeletal muscle

D. Involuntary muscle

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In angiosperms, what is the female reproductive structure that contains the ovules?

A. Stamen

B. Pistil (carpel)

C. Sepal

D. Petal