What is the term for the shedding of the uterine lining in the absence of pregnancy, resulting in menstruation?
Ovulation
Fertilization
Menarche
Menstruation
Correct Answer :
D. Menstruation
Related Questions
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
In humans, which hormone is responsible for the development of secondary sexual characteristics in males?
Estrogen
Progesterone
Testosterone
Prolactin
What is the primary pigment responsible for photosynthesis in plants?
Chlorophyll
Carotene
Xanthophyll
Phycobilin
Which part of a plant is responsible for producing seeds?
Stem
Leaf
Flower
Root
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 process by which plants respond to light and grow toward it called?
Phototropism
Gravitropism
Thigmotropism
Hydrotropism
Which class of vertebrates includes animals with scales, a bony skeleton, and a two-chambered heart?
Mammals
Amphibians
Reptiles
Birds
The relationship between a bee and a flower, where the bee obtains nectar and pollen while aiding in pollination, is an example of:
Mutualism
Parasitism
Competition
Commensalism
What is the term for a change in the sequence of DNA that can be passed on to offspring?
Gene flow
Genetic drift
Mutation
Natural selection
Which cell organelle contains digestive enzymes and is involved in cellular waste disposal?
Mitochondria
Nucleus
Lysosome
Chloroplast
What is the primary driver of the current global biodiversity crisis?
Habitat loss
Climate change
Pollution
Invasive species
What is the name of the protein that carries oxygen in red blood cells?
Insulin
Hemoglobin
Collagen
Myoglobin
Homo sapiens originated on which continent?
Africa
Asia
Europe
South America
What is the term for a virus that infects bacteria?
Bacteriophage
Retrovirus
Prion
Viroid
What type of microorganism is responsible for turning milk into yogurt and cheese?
Bacteria
Virus
Fungus
Protist
What is the term for the process by which animals change their physical and behavioral traits in response to seasonal changes?
Hibernation
Migration
Estivation
Camouflage
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
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
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 function of the pancreas in the human body?
Digestion of proteins
Regulation of blood sugar levels
Filtration of blood
Production of bile
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
Which of the following is NOT part of the human digestive system?
Stomach
Liver
Kidney
Small intestine
Which term refers to the variety of life on Earth, including the diversity of species, ecosystems, and genetic variation within species?
Sustainability
Biodiversity
Ecology
Conservation
Which of the following is a bacterial disease that primarily affects the respiratory system and can be prevented by vaccination?
Tuberculosis
Malaria
Cholera
Whooping cough (Pertussis)
Which type of muscle is responsible for voluntary movements in the body?
Smooth muscle
Cardiac muscle
Skeletal muscle
Involuntary muscle
Which of the following is a viral disease transmitted through the bite of infected mosquitoes?
Tuberculosis
Malaria
Influenza
Lyme disease
The smallest unit of a chemical element that retains the properties of that element is called:
Atom
Molecule
Cell
Tissue
In which type of population distribution are individuals evenly spaced throughout their habitat?
Random dispersion
Clumped dispersion
Uniform dispersion
Overlapping dispersion
What is the primary function of the plant cuticle?
Gas exchange
Water retention and protection
Photosynthesis
Nutrient absorption
Which bone in the human body is often referred to as the collarbone?
Radius
Femur
Clavicle
Tibia