introduction to life science

Biology

The study of life.

Bios

Life.

Logos

Study.

Taxonomy

The naming and classifying of organisms.

Cytology

The study of cells, including animal cells.

Embryology

The formation and development of organisms.

Anatomy

The study of structures and body parts.

Physiology

The study of the functions of organisms and their parts.

Biochemistry

The study of the biological composition.

Genetics

The study of heredity and variation.

Evolution

The study of the origin of organisms.

Ecology

The study of the relationship of organisms with the environment.

Atom

The fundamental unit of matter.

Molecule

A group of atoms, a combination of two or more elements.

Cell organelles

Centrosome, cell wall, mitochondria, ribosomes, chloroplast, cytoplasm.

Cell

The basic unit of life.

Tissue

A group of cells, including connective, muscle, nervous, and epithelial.

Organ

A collection of tissues that work together to make the body function.

Organ system

A system of organs, such as the nervous, circulatory, respiratory, reproductive, integumentary, digestive, endocrine, urinary/excretory, and lymphatic system.

Organism

A living entity capable of reproduction.

Population

A group of the same species living in the same area.

Biocenoses/Community

A community of organisms and their relationships.

Ecosystem

The environment of organisms and the interactions of living things with their environment.

Biome

A large-scale ecosystem characterized by specific climate and vegetation.

Biosphere

The global sum of all ecosystems on Earth.

Theories of the origin of life

Si Malakas, at si Maganda, Adam and Eve in Filipino context, Divine theory of creation, Theory of evolution.

Biogenesis

The theory that life comes from life through reproduction.

Abiogenesis

The theory that life comes from non-living things through spontaneous generation.

Charles Darwin

Proposed the theory of evolution and the concept of survival of the fittest.

George-Louis Buffon

Proposed that species change as they migrate to new environments.

Jean Baptiste Lamarck

Proposed the theory that species change gradually to adapt to their needs and the theory of use and disuse.

Characteristics of life

Growth and development, reproduction (sexual and asexual), homeostasis, metabolism (catabolism and anabolism), motility.