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Biology learning and practice
Explore cells, animals, plants, genetics, evolution and ecosystems. Connect biological structures with their functions and practise explaining relationships between living things.
10 topics · 101 skills · Free plan available
Start learning BiologyAnimals
Animals and how they live — habitats, the main groups, classification, adaptations, lifecycles, and predator and prey.
- Adaptations
- Animal Classification
- Animal Communication
- Animal Groups
- Animal Habitats
- Behavioral Adaptations
- Domesticated vs Wild Animals
- Endangered Species
- Food Chains
- Lifecycles
- Migration
- Predator & Prey
- Reproduction
- Structural Adaptations
- Survival Behaviors
- Vertebrates vs Invertebrates
Biotechnology Basics
Using living things as tools: genetic modification, cloning, medical uses, and the questions they raise.
- Cloning
- Ethical Considerations
- Genetic Modification
- Medical Applications
- What is Biotechnology
Cells
The unit every living thing is built from — the parts of a cell, what each does, the types, and how substances move in and out.
- Active Transport
- Cell Cycle Regulation
- Cell Membrane
- Cell Structure
- Cell Types
- Cell Wall
- Cellular Respiration
- Chloroplasts
- Diffusion
- Meiosis
- Mitosis
- Osmosis
- Passive Transport
- Prokaryotic vs Eukaryotic Cells
- Protein Synthesis
- Ribosomes
- Cytoplasm
- Nucleus
- Mitochondria
Ecology
How living things fit together: ecosystems, food webs, biomes, populations, energy flow, and the mark people leave on them.
- Biodiversity
- Biomes
- Communities
- Competition
- Ecological Balance
- Ecological Collapse
- Ecosystems
- Energy Flow
- Environmental Impact
- Food Webs
- Human Influence on Ecosystems
- Niches
- Populations
- Resource Limitation
- Symbiosis
- Trophic Levels
Evolution Basics
How species change over time — natural selection, adaptation and survival, the making of new species, and the fossil record.
- Adaptation and Survival
- Evolution
- Fossil Evidence
- Natural Selection
- Speciation
Genetics Basics
How traits are passed on: DNA, genes, chromosomes, dominant and recessive, Punnett squares, variation and mutation.
- Chromosomes
- DNA
- DNA Replication
- Dominant vs Recessive
- Gene Expression
- Genes
- Genetic Variation
- Genotypes
- Heredity
- Inheritance Patterns
- Mutations
- Phenotypes
- Punnett Squares
- RNA
- Traits
Human Body
The systems that keep a body running — skeletal, muscular, nervous, digestive, respiratory and circulatory.
- Circulatory System
- Digestive System
- Muscular System
- Nervous System
- Organ Systems
- Respiratory System
- Skeletal System
Living Things
What makes something alive: the characteristics of life, how living things are organised, homeostasis, growth and response.
- Characteristics of Life
- Growth and Development
- Homeostasis
- Levels of Organization
- Response to Stimuli
Microorganisms
Life too small to see — bacteria, fungi, viruses and protozoa, the useful and the harmful, and antibiotic resistance.
- Antibiotic Resistance
- Bacteria
- Beneficial Microorganisms
- Fungi
- Harmful Microorganisms
- Protozoa
- Viruses
Plants
How plants are built and how they work: structure, adaptations, reproduction, photosynthesis, transpiration and transport.
- Photosynthesis
- Plant Adaptations
- Plant Reproduction
- Plant Structure
- Transpiration
- Transport in Plants
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