What is the largest organ in the human body?
Brain
Liver
Skin
Heart
Correct Answer :
C. Skin
Related Questions
What is the name of the protein that carries oxygen in red blood cells?
Insulin
Hemoglobin
Collagen
Myoglobin
Which type of muscle is responsible for voluntary movements in the body?
Smooth muscle
Cardiac muscle
Skeletal muscle
Involuntary muscle
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?
Conditioning
Habituation
Reflex
Imprinting
Which hominid species is known for its use of fire and tools, and is believed to be the first to migrate out of Africa?
Neanderthals
Homo erectus
Australopithecus afarensis
Homo habilis
Which part of a plant is responsible for producing seeds?
Stem
Leaf
Flower
Root
What is the name of the enzyme that unwinds and separates the DNA strands during replication?
RNA polymerase
Ligase
Helicase
Polymerase chain reaction (PCR)
What is the function of the cell membrane?
Synthesizing proteins
Protecting the nucleus
Regulating the passage of substances in and out of the cell
Storing genetic information
What is the function of the pancreas in the human body?
Digestion of proteins
Regulation of blood sugar levels
Filtration of blood
Production of bile
Which blood vessels carry oxygenated blood away from the heart to the body's tissues?
Veins
Arteries
Capillaries
Venules
In which type of population distribution are individuals evenly spaced throughout their habitat?
Random dispersion
Clumped dispersion
Uniform dispersion
Overlapping dispersion
What is the term for the maximum number of individuals of a species that an ecosystem can support indefinitely?
Carrying capacity
Population density
Limiting factor
Exponential growth
What is the term for the process by which an embryo implants itself in the uterine lining and begins to develop?
Ovulation
Fertilization
Implantation
Menstruation
Which of the following is NOT a function of the cell wall in plant cells?
Providing structural support
Regulating osmotic balance
Facilitating cell communication
Protecting against pathogens
Which part of the human brain is responsible for coordinating muscle movements and maintaining balance?
Cerebrum
Cerebellum
Medulla oblongata
Hypothalamus
What is the term for a gene that is expressed when present, even if only one copy is present in an individual's genotype?
Recessive
Dominant
Co-dominant
Allelic
Which bone in the human body is often referred to as the collarbone?
Radius
Femur
Clavicle
Tibia
What is the primary function of the plant cuticle?
Gas exchange
Water retention and protection
Photosynthesis
Nutrient absorption
A human male has how many sex chromosomes?
1
2
23
46
Which of the following is a direct benefit of biodiversity to humans?
Increased greenhouse gas emissions
Decreased agricultural productivity
Development of new medicines
Soil erosion
Which type of survivorship curve is characterized by a high mortality rate in early life, followed by high survivorship in later life?
Type I
Type II
Type III
Type IV
Which type of learning occurs when an animal associates a neutral stimulus with a meaningful stimulus to produce a response?
Classical conditioning
Operant conditioning
Habituation
Imprinting
Which plant hormone is responsible for promoting cell elongation and growth in response to light?
Auxin
Gibberellin
Ethylene
Cytokinin
What is the function of the human liver?
Filtration of blood
Regulation of blood sugar levels
Production of bile and detoxification
Transport of oxygen
What is the largest group of arthropods, known for their jointed appendages and hard exoskeleton?
Insects
Arachnids
Crustaceans
Myriapods
What is the main function of the respiratory system?
Regulation of blood sugar levels
Transportation of oxygen and carbon dioxide
Digestion of food
Filtration of blood
What is the primary function of the fallopian tubes in the female reproductive system?
Menstruation
Fertilization of the egg by sperm
Implantation of the fertilized egg in the uterus
Production of estrogen
What is the primary source of energy for most ecosystems?
Wind
Water
Sunlight
Geothermal heat
What is the term for the innate, automatic response of an organism to a stimulus?
Conditioning
Habituation
Reflex
Instinct
What is the term for the process by which a pathogen is recognized and neutralized by the immune system upon subsequent exposure?
Vaccination
Antibody production
Immunity
Immune response
Which microorganism is responsible for the majority of human yeast infections?
Bacteria
Virus
Fungus
Protist