Human Body
What system controls body movement with muscles and bones?
Skeletal & muscular system
What is the cell formed when sperm and egg unite?
Zygote
What molecule carries genetic information?
DNA
What do we call a trait that helps an organism survive?
Adaptation
What is the smallest unit of an element?
Atom
Which system carries oxygen and nutrients in the blood?
Circulatory system
What stage comes after the embryo but before birth?
Fetus
What are different versions of the same gene called?
Alleles
Who is the scientist who proposed natural selection?
Charles Darwin
What is the center of the atom called?
Nucleus
What organ controls the nervous system?
Brain
In plants, what structure forms after fertilization and contains the embryo?
Seed
A chart used to predict inheritance of traits is called?
Punnett square
What is “survival of the fittest”?
Best traits survive and reproduce
Which subatomic particle has a negative charge?
Electron
Which system helps break down food into nutrients?
Digestive system
In plants, what process happens when pollen meets the ovule?
Pollination / Fertilization
What is the difference between genotype and phenotype?
Example: Whales used to walk on land — what is this long-term process of change called?
Evolution
A substance made of two or more elements chemically combined is called?
Compound
Which system removes waste from the blood and maintains water balance?
Excretory/Urinary system
Why is reproduction important for a species?
It ensures survival of the species by creating new individuals
If brown eyes (B) are dominant and blue eyes (b) are recessive, what is the phenotype of Bb?
Brown eyes
During the Industrial Revolution, dark moths survived better than light ones in polluted areas. What is this an example of?
Natural selection
What is the difference between an element and a compound?
Element = one type of atom; Compound = two or more different atoms chemically bonded