Free Introduction to Biology MCQs with Answers

• A. Environmental biology
• B. Microbiology
• C. Ecology
• D. Freshwater biology

Explanation: A. Study of organisms in relation to their environment with respect to human impact. B. Study of microorganisms, viruses, protozoa, etc.

• A. Human biology
• B. Social biology
• C. Parasitology
• D. Biotechnolgy

Explanation: A. Deals with the study of man B. Deals with the study of human behavior in human beings. D.

• A. Biosphere
• B. Ecosystem
• C. Community
• D. Habitat

Explanation: B. A community together with its non-living surroundings. C. Two or more populations of different species living and interacting in the…

• A. Population
• B. Multicellular organism
• C. An organ
• D. Species

Explanation: A. Population consists of members of one species inhabiting the same area. B.

• A. Muscle tissue
• B. Glandular tissue
• C. Liver
• D. Phloem tissue

Explanation: A. Animal tissue B Animal tissue C. An organ in animals

• A. Xylem tissue
• B. Stomach
• C. Stem
• D. Mesenchyme

Explanation: Xylem is a vascular tissue in plants that conveys water and dissolved minerals from the roots to the rest of the plant and also provides…

• A. Community
• B. Population
• C. Ecosystem
• D. Species

Explanation: A. Community refers to the living part of an ecosystem B. Population is a group of living organisms of the same species. C.

• A. Mutualism
• B. Competiton
• C. Biome
• D. Parasitism

Explanation: The correct answer is a biome. A large regional community primarily determined by climate is referred to as a biome.

• A. Biome
• B. Biosphere
• C. Biodiversity
• D. Phyletic lineage

Explanation: A. A large regional community primarily determined by climate. B. Part of earth inhabited by living organisms D.

• A. Inductive reasoning
• B. Deductive reasoning
• C. Hypothesis
• D. Science

Explanation: A. Reasoning from specific to general C. A statement per experience and background knowledge D. A systemized knowledge

• A. Theory
• B. Biological law
• C. Hypothesis
• D. Observation

Explanation: A. Series of hypotheses supported by tests C. Statement per experience and background knowledge D. Based on experimental inquiry

• A. Cloning
• B. Genetic engineering
• C. Biological control
• D. Tissue culture technique

Explanation: B. Genes with desirable characters are produced C Control by some living organisms D. Culturing tissues using specific medium

• A. Whooping cough
• B. Polio
• C. Anemia
• D. Hepatitis

Explanation: The correct answer is d) hepatitis. Hepatitis is an example of a contagious disease that can be transmitted through blood contact…

• A. Human Biology
• B. Social Biology
• C. Parasitology
• D. Biotechnology

Explanation: Parasitology is the branch of biology that studies parasites, their hosts, and the relationship between them.

• A. Muscle tissue
• B. Glandular tissue
• C. Liver
• D. Phloem tissue

Explanation: Dermal tissue, for example, is a simple tissue that covers the outer surface of the plant and controls gas exchange.

• A. Cloning
• B. Genetic engineering
• C. Biological control
• D. Tissue culture technique

Explanation: Cloning is the process of producing genetically identical organisms from a single parent through asexual reproduction.

• A. Sub-atomic particles
• B. Atomic particles
• C. Micromolecules
• D. Macromolecules

Explanation: Protons are sub-atomic particles found in the nucleus of an atom. They have a positive charge and, along with neutrons, make up the nucleus.

• A. Micromolecule
• B. Macromolecule
• C. Organic molecule
• D. Inorganic molecule

Explanation: Organic molecules are primarily composed of carbon and hydrogen.

• A. Cells
• B. Organelles
• C. Tissue
• D. Organ

Explanation: Organelles are specialized structures within a cell that perform distinct processes necessary for cellular function.

• A. Mitochondria
• B. Chloroplast
• C. Vacuoles
• D. Nucleus

Explanation: Vacuoles are not typically bound by a double membrane. They are enclosed by a single membrane known as the tonoplast.