What is the main function of the kidneys in the human body?
Regulation of blood sugar levels
Production of red blood cells
Filtration of blood and excretion of waste products
Digestion of food
Correct Answer :
C. Filtration of blood and excretion of waste products
Related Questions
Which of Mendel's laws states that alleles for different genes segregate independently during gamete formation?
Law of Dominance
Law of Independent Assortment
Law of Segregation
Law of Inheritance
What is the process by which segments of DNA are shuffled during the formation of gametes, leading to genetic diversity?
Meiosis
Mitosis
Replication
Crossing over
Which term refers to structures that have no apparent function but resemble functional structures in other organisms?
Homologous structures
Analogous structures
Vestigial structures
Adaptive structures
What is the term for a disease-causing microorganism?
Antibiotic
Parasite
Pathogen
Virus
The smallest unit of a chemical element that retains the properties of that element is called:
Atom
Molecule
Cell
Tissue
What is the name of the enzyme that unwinds and separates the DNA strands during replication?
RNA polymerase
Ligase
Helicase
Polymerase chain reaction (PCR)
In which plant tissue does most photosynthesis occur?
Epidermis
Xylem
Phloem
Mesophyll
What is the main function of the kidneys in the human body?
Regulation of blood sugar levels
Production of red blood cells
Filtration of blood and excretion of waste products
Digestion of food
What is the name of the enzyme in saliva that begins the digestion of starches?
Pepsin
Amylase
Trypsin
Lipase
Which biome is characterized by cold temperatures, permafrost, and a lack of trees?
Tundra
Desert
Tropical rainforest
Grassland
A human male has how many sex chromosomes?
1
2
23
46
In a DNA molecule, adenine (A) pairs with:
Thymine (T)
Cytosine (C)
Guanine (G)
Uracil (U)
What is the term for the study of human societies, cultures, and behaviors?
Sociology
Anthropology
Psychology
Archaeology
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 term for the process by which modern humans gradually replaced archaic humans, such as Neanderthals, through migration and competition?
Speciation
Coevolution
Extinction
Out-of-Africa hypothesis
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
In humans, which hormone is responsible for the development of secondary sexual characteristics in males?
Estrogen
Progesterone
Testosterone
Prolactin
What is the name of the protein that carries oxygen in red blood cells?
Insulin
Hemoglobin
Collagen
Myoglobin
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 of the following is NOT a method of seed dispersal in plants?
Wind
Water
Insects
Gravity
Which of the following is a characteristic of mammals?
Cold-blooded
Lay eggs
Have mammary glands
Breathe through gills
Which of the following is a sex-linked genetic disorder?
Huntington's disease
Down syndrome
Hemophilia
Cystic fibrosis
Which of the following is a viral disease transmitted through the bite of infected mosquitoes?
Tuberculosis
Malaria
Influenza
Lyme disease
What is the primary source of energy for most ecosystems?
Wind
Water
Sunlight
Geothermal heat
Which cell organelle contains digestive enzymes and is involved in cellular waste disposal?
Mitochondria
Nucleus
Lysosome
Chloroplast
Homo sapiens originated on which continent?
Africa
Asia
Europe
South America
What type of plant tissue is responsible for transporting water and nutrients throughout the plant?
Epidermis
Xylem
Phloem
Cortex
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 regulating basic bodily functions like breathing and heart rate?
Cerebrum
Cerebellum
Medulla oblongata
Thalamus
The study of the geographic distribution of species is known as:
Biogeography
Ecology
Ethology
Taxonomy