Which of the following is a characteristic of mammals?
Cold-blooded
Lay eggs
Have mammary glands
Breathe through gills
Correct Answer :
C. Have mammary glands
Related Questions
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
What is the term for the innate, automatic response of an organism to a stimulus?
Conditioning
Habituation
Reflex
Instinct
Which type of behavior involves the establishment and maintenance of a territory for mating and/or obtaining resources?
Agonistic behavior
Courtship behavior
Dominance hierarchy
Territorial behavior
Which plant hormone is responsible for promoting cell elongation and growth in response to light?
Auxin
Gibberellin
Ethylene
Cytokinin
Which of the following is NOT a method of seed dispersal in plants?
Wind
Water
Insects
Gravity
The smallest unit of a chemical element that retains the properties of that element is called:
Atom
Molecule
Cell
Tissue
What is the primary function of the mitochondria?
Protein synthesis
Energy production
Lipid synthesis
Waste elimination
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
What is the process by which plants respond to light and grow toward it called?
Phototropism
Gravitropism
Thigmotropism
Hydrotropism
In a DNA molecule, adenine (A) pairs with:
Thymine (T)
Cytosine (C)
Guanine (G)
Uracil (U)
Which of the following is the smallest unit of the nervous system?
Neuron
Nerve
Ganglion
Brain
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
What is the term for the transfer of pollen from the male reproductive organ to the female reproductive organ of a flower?
Fertilization
Pollination
Germination
Embryo development
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
Which biome is characterized by cold temperatures, permafrost, and a lack of trees?
Tundra
Desert
Tropical rainforest
Grassland
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
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 the variety of life on Earth, including the diversity of species, ecosystems, and genetic variation within species?
Sustainability
Biodiversity
Ecology
Conservation
What is the primary pigment responsible for photosynthesis in plants?
Chlorophyll
Carotene
Xanthophyll
Phycobilin
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
What is the function of the human respiratory system?
Regulation of blood sugar levels
Transportation of oxygen and carbon dioxide
Digestion of food
Filtration of blood
What is the role of the hypothalamus in the human brain?
Coordination of muscle movements
Regulation of body temperature and hormone secretion
Memory storage
Visual processing
What is the process by which a seed begins to grow into a new plant?
Fertilization
Pollination
Germination
Photosynthesis
The human heart has how many chambers?
2
3
4
5
What type of plant tissue is responsible for transporting water and nutrients throughout the plant?
Epidermis
Xylem
Phloem
Cortex
Which of the following is an example of an invasive species?
Native grasses in their natural habitat
A non-native tree planted in a garden
A species that naturally occurs in a specific ecosystem
A species that is endangered
What is the process by which species evolve into more diverse forms over time?
Speciation
Convergent evolution
Divergent evolution
Coevolution
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 bacterial disease that primarily affects the respiratory system and can be prevented by vaccination?
Tuberculosis
Malaria
Cholera
Whooping cough (Pertussis)