Cell Basics
This part of the cell controls all activities and holds DNA.
Nucleus
Different versions of a gene (e.g., blue vs. brown eyes).
Alleles
Organs that oxygenate blood.
Lungs
All living things in an area (e.g., forest animals/plants).
Community
Preserved remains of ancient life.
Fossils
The "powerhouse" that makes energy for the cell.
Mitochondria
XX chromosomes in humans.
Female/Woman
The body system that breaks down food.
Digestive System
An animal that only eats plants.
Herbivore
"Survival of the fittest" scientist.
Charles Darwin
Water moving across a cell membrane without energy.
Osmosis
When both alleles are the same (e.g., TT or tt).
Homozygous
The part of the brain controlling breathing and heartbeat.
Brainstem
Plants turning sunlight into food.
Photosynthesis
When two species evolve together (e.g., flowers & bees).
Coevolution
The phase where chromosomes split apart in cell division.
Anaphase
A chart that predicts offspring traits.
Punnett Square
Hormone that tells cells to absorb sugar from blood.
Insulin
Bacteria that turn nitrogen gas into plant nutrients.
Nitrogen-fixing Bacteria
Structures with same origin but different jobs (e.g., human arm vs. bat wing).
Homologous Structures
A cell without a nucleus (e.g., bacteria).
Prokaryote/Prokaryotic Cell
A permanent change in DNA.
Mutation
Blood vessels carrying blood away from the heart.
Arteries
The maximum number of deer a forest can support.
Carrying Capacity
When a species disappears forever.
Extinction