Unravel the complexities of life itself, from microscopic cells to sprawling ecosystems. Explore genetics, evolution, and the wonders of the natural world.
Biology offers a rich and intricate world for crossword puzzles, filled with precise terminology, evolutionary concepts, and the names of groundbreaking scientists. Clues can range from cellular components like "mitochondria" and "DNA" to broader ecological terms such as "photosynthesis" or "biodiversity." This topic allows constructors to create puzzles that are both scientifically rigorous and deeply engaging, appealing to those with a curiosity for how life works at every level.
Crossword clues used in biology puzzles, with answers and links to play.
“Organ used for breathing”
LUNG (4)
“Organ that filters waste from the blood”
KIDNEY (6)
“Living organism that typically produces its own food via photosynthesis”
PLANT (5)
“The command center of the nervous system”
BRAIN (5)
“Large organ that cleans the blood and produces bile”
LIVER (5)
“Protein that speeds up chemical reactions in the body”
ENZYME (6)
“The organ used for seeing”
EYE (3)
“A tiny living thing that can cause disease”
GERM (4)
“The underground part of a plant”
ROOT (4)
“The organ where food is digested”
STOMACH (7)
“A hard part of the skeleton”
BONE (4)
“A group of living things that are similar”
SPECIES (7)
“The molecule that carries genetic information”
DNA (3)
“The part of a flowering plant that can grow into a new one”
SEED (4)
“A fiber that sends signals to the brain”
NERVE (5)
“The small part of a plant that can grow into a new one”
SEED (4)
“The basic unit of all living things”
CELL (4)
“The outer layer of the body”
SKIN (4)
“A segment of DNA that determines a trait”
GENE (4)
“An organ used for breathing air”
LUNG (4)
“Any tiny part of a cell with a specific job”
ORGANEL (7)
“Cells that form a protective layer over the body”
SKIN (4)
“The scientific name for the cell control center”
NUCLEUS (7)
“The simple sugar that cells use for fuel”
GLUCOSE (7)
“A small segment of DNA that determines a trait”
GENE (4)
“The genetic material that carries instructions for life”
DNA (3)
“A long cell that sends signals to the brain”
NERVE (5)
“An oval object from which a baby animal hatches”
EGG (3)
“The basic building block of all living things”
CELL (4)
“The part of a plant where photosynthesis usually happens”
LEAF (4)
Showing the first 30 of 116 clues. Visit each puzzle to see all its clues.