Welcome to the 11th Class Biology Chapter 1 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 11th Class Biology Chapter 1 Introduction.
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Biology is the scientific study of .
a) Earth and its atmosphere
b) Living organisms and their interactions
c) Chemical reactions and energy transformations
d) Celestial bodies and outer space
Which of the following is NOT a characteristic of living organisms?
a) Growth and development
b) Reproduction
c) Inorganic composition
d) Response to stimuli
The basic unit of life is .
a) The cell
b) The molecule
c) The organ
d) The tissue
The process by which organisms maintain a stable internal environment is called
a) Homeostasis
b) Metabolism
c) Photosynthesis
d) Respiration
The scientific method involves which of the following steps?
a) Hypothesis, analysis, and conclusion
b) Observation, hypothesis, experiment, and conclusion
c) Experiment, analysis, and evaluation
d) Conclusion, theory, and law
A testable explanation for an observed phenomenon is called .
a) A theory
b) A law
c) A hypothesis
d) A prediction
The process by which living organisms produce offspring of the same kind is known as .
a) Evolution
b) Adaptation
c) Reproduction
d) Natural selection
The total genetic material of an organism is called .
a) Chromosome
b) Gene
c) Genome
d) Nucleotide
The classification system used in biology to organize and categorize living organisms is called .
a) Taxonomy
b) Phylogeny
c) Genetics
d) Evolution
The study of the evolutionary history and relationships among living organisms is known as .
a) Taxonomy
b) Genetics
c) Phylogeny
d) Ecology
Which of the following is an example of a prokaryotic organism?
a) Human
b) Plant
c) Bacterium
d) Fungus
The process by which living organisms undergo gradual changes over time, leading to new species, is called .
a) Adaptation
b) Evolution
c) Homeostasis
d) Metabolism
The ultimate source of energy for most living organisms on Earth is .
a) Sun
b) Water
c) Soil
d) Air
Which of the following is NOT a kingdom in the classification of living organisms?
a) Animalia
b) Plantae
c) Fungi
d) Mammalia
The process by which plants use sunlight to synthesize food from carbon dioxide and water is called .
a) Respiration
b) Photosynthesis
c) Fermentation
d) Digestion
The branch of biology that focuses on the study of heredity and variation in living organisms is called .
a) Ecology
b) Genetics
c) Evolution
d) Physiology
The process by which individuals with favorable traits are more likely to survive and reproduce, leading to the increase of those traits in the population, is known as
.
a) Adaptation
b) Natural selection
c) Evolution
d) Photosynthesis
The branch of biology that deals with the study of the interactions between living organisms and their environment is called .
a) Physiology
b) Genetics
c) Ecology
d) Taxonomy
The process by which multicellular organisms grow and develop from a single cell is
known as .
a) Photosynthesis
b) Respiration
c) Reproduction
d) Embryogenesis
The branch of biology that deals with the study of the structure and function of living organisms is called .
a) Physiology
b) Genetics
c) Ecology
d) Anatomy
The scientific name of an organism is composed of two parts: the genus and the .
a) Family
b) Species
c) Class
d) Order
The study of fossils to understand the history of life on Earth is known as .
a) Paleontology
b) Evolution
c) Genetics
d) Embryology
The process by which living organisms take in oxygen and release carbon dioxide is called
a) Respiration
b) Photosynthesis
c) Fermentation
d) Digestion
The branch of biology that deals with the study of cells and their organelles is called
a) Physiology
b) Cytology
c) Ecology
d) Genetics
The genetic material in living organisms is stored in the form of .
a) Proteins
b) Carbohydrates
c) Nucleotides
d) DNA
The study of the chemical processes occurring within living organisms is called
a) Physiology
b) Genetics
c) Biochemistry
d) Ecology
The process by which an organism undergoes a series of changes in its lifetime, eventually leading to its death, is known as .
a) Reproduction
b) Growth
c) Development
d) Aging
The branch of biology that deals with the study of the immune system and its response to foreign substances is called .
a) Immunology
b) Physiology
c) Genetics
d) Ecology
The process by which two individuals of different species interbreed to produce offspring is called .
a) Reproduction
b) Hybridization
c) Evolution
d) Photosynthesis
The branch of biology that deals with the study of the nervous system and its functions is called .
a) Physiology
b) Genetics
c) Neurobiology
d) Ecology
The process by which living organisms obtain and use energy from their surroundings is called .
a) Respiration
b) Metabolism
c) Fermentation
d) Digestion
The branch of biology that deals with the study of the brain and behavior is called
a) Physiology
b) Genetics
c) Neuroscience
d) Ecology
The study of the interactions between living organisms and their physical environment is called .
a) Ecology
b) Genetics
c) Physiology
d) Embryology
The process by which living organisms break down complex substances into simpler ones to release energy is called .
a) Respiration
b) Photosynthesis
c) Fermentation
d) Digestion
The branch of biology that deals with the study of the behavior and interaction of living organisms is called .
a) Physiology
b) Genetics
c) Ethology
d) Ecology
The process by which living organisms produce offspring that are similar to themselves is called .
a) Reproduction
b) Growth
c) Development
d) Evolution
The study of the structure and function of tissues and organs in living organisms is called
a) Physiology
b) Genetics
c) Histology
d) Embryology
The process by which living organisms maintain a stable internal environment despite changes in the external environment is called .
a) Evolution
b) Homeostasis
c) Metabolism
d) Reproduction
The branch of biology that deals with the study of heredity and the passing of traits from one generation to another is called
a) Physiology
b) Genetics
c) Ecology
d) Taxonomy
The process by which living organisms use light energy to convert carbon dioxide and water into glucose and oxygen is called .
a) Respiration
b) Photosynthesis
c) Fermentation
d) Digestion
The study of the structure and function of genes and their inheritance in living organisms is called .
a) Physiology
b) Genetics
c) Bioinformatics
d) Ecology
The branch of biology that deals with the study of the structure and function of living organisms at the molecular level is called .
a) Physiology
b) Genetics
c) Molecular biology
d) Ecology
The process by which living organisms pass on their genetic information to their offspring is called .
a) Reproduction
b) Heredity
c) Adaptation
d) Evolution
The branch of biology that deals with the study of the principles of heredity and variation in living organisms is called .
a) Physiology
b) Genetics
c) Evolution
d) Ecology
The process by which living organisms produce new individuals of the same species is known as .
a) Evolution
b) Reproduction
c) Adaptation
d) Metabolism
The study of the interactions between living organisms and their environment, including other living organisms, is called .
a) Ecology
b) Genetics
c) Physiology
d) Embryology
The process by which living organisms break down glucose to release energy in the absence of oxygen is called .
a) Respiration
b) Photosynthesis
c) Fermentation
d) Digestion
The branch of biology that deals with the study of the structure and function of living organisms at the cellular level is called .
a) Physiology
b) Genetics
c) Cytology
d) Ecology
The process by which living organisms obtain energy by consuming and breaking down organic matter is called .
a) Respiration
b) Photosynthesis
c) Fermentation
d) Nutrition
The study of the interactions between living organisms and their physical environment, including the study of populations and communities, is called .
a) Physiology
b) Genetics
c) Ecology
d) Taxonomy
The process by which living organisms obtain energy from food and convert it into usable forms is called .
a) Respiration
b) Photosynthesis
c) Fermentation
d) Metabolism
The branch of biology that deals with the study of the structure and function of living organisms at the organ and system level is called .
a) Physiology
b) Genetics
c) Anatomy
d) Ecology
The study of the genetic composition and heredity of populations is called .
a) Physiology
b) Genetics
c) Population genetics
d) Ecology
The process by which living organisms change and adapt to their environment over time is called .
a) Reproduction
b) Growth
c) Evolution
d) Development
The branch of biology that deals with the study of the functions of living organisms and their parts is called .
a) Physiology
b) Genetics
c) Anatomy
d) Ecology
The process by which living organisms produce offspring that are not identical to themselves is called .
a) Reproduction
b) Growth
c) Development
d) Variation
The study of the structure and function of tissues and organs in living organisms is called
.
a) Physiology
b) Genetics
c) Histology
d) Embryology
The process by which living organisms maintain a stable internal environment despite changes in the external environment is called .
a) Evolution
b) Homeostasis
c) Metabolism
d) Reproduction
The branch of biology that deals with the study of heredity and the passing of traits from one generation to another is called
a) Physiology
b) Genetics
c) Ecology
d) Taxonomy
The process by which living organisms use light energy to convert carbon dioxide and water into glucose and oxygen is called .
a) Respiration
b) Photosynthesis
c) Fermentation
d) Digestion
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