Introduction to Biology

Biology is the scientific study of life and living organisms
Examines structure, function, growth, evolution, distribution, and taxonomy of all living things
Includes diverse fields such as botany, zoology, microbiology, ecology, and genetics

Botany: study of plants, including their structure, growth, evolution, classification, and distribution
Zoology: study of animals, including their structure, behavior, evolution, classification, and distribution
Microbiology: study of microorganisms, such as bacteria, viruses, and protists
Ecology: study of interactions between organisms and their environment
Genetics: study of heredity, genes, and genetic variation
Biochemistry: study of chemical processes and compounds that occur within living organisms
Molecular Biology: study of biological processes at the molecular level

Molecule: basic building blocks of life, such as carbohydrates, proteins, and nucleic acids
Cell: basic structural and functional unit of life
Tissue: group of similar cells that perform a specific function
Organ: structure composed of two or more types of tissues that work together
Organ System: group of organs that work together to perform a specific function
Organism: individual living thing, such as an animal, plant, or microbe
Population: group of individuals of the same species living in a specific area
Community: group of different species living in a specific area
Ecosystem: community of living and non-living components interacting in a specific area
Biosphere: all living things on Earth

Metabolism: chemical reactions that occur within cells to maintain life
Photosynthesis: process by which plants convert light energy into chemical energy
Respiration: process by which cells generate energy from glucose
Cell Division: process by which cells reproduce and grow
Homeostasis: ability of an organism to maintain a stable internal environment
Evolution: change in the characteristics of a species over time through genetic variation and natural selection

Biology is the scientific study of life and living organisms, examining structure, function, growth, evolution, distribution, and taxonomy of all living things.
It includes diverse fields such as botany, zoology, microbiology, ecology, and genetics.

Botany is the study of plants, including their structure, growth, evolution, classification, and distribution.
Zoology is the study of animals, including their structure, behavior, evolution, classification, and distribution.
Microbiology is the study of microorganisms, such as bacteria, viruses, and protists.
Ecology is the study of interactions between organisms and their environment.
Genetics is the study of heredity, genes, and genetic variation.
Biochemistry is the study of chemical processes and compounds that occur within living organisms.
Molecular Biology is the study of biological processes at the molecular level.

Molecules are the basic building blocks of life, including carbohydrates, proteins, and nucleic acids.
Cells are the basic structural and functional units of life.
Tissues are groups of similar cells that perform a specific function.
Organs are structures composed of two or more types of tissues that work together.
Organ Systems are groups of organs that work together to perform a specific function.
Organisms are individual living things, such as animals, plants, or microbes.
Populations are groups of individuals of the same species living in a specific area.
Communities are groups of different species living in a specific area.
Ecosystems are communities of living and non-living components interacting in a specific area.
The Biosphere includes all living things on Earth.

Metabolism involves chemical reactions that occur within cells to maintain life.
Photosynthesis is the process by which plants convert light energy into chemical energy.
Respiration is the process by which cells generate energy from glucose.
Cell Division is the process by which cells reproduce and grow.
Homeostasis is the ability of an organism to maintain a stable internal environment.
Evolution is the change in the characteristics of a species over time through genetic variation and natural selection.