1) Which of the following is the basic unit of heredity? a) Cell b) Gene c) Organ d) Tissue 2) What process do plants use to make their own food? a) Photosyntesis b) Respiration c) Fermentation d) Transpiration 3) The circulatory system is responsible for transporting blood. Which organ pumps the blood throughout the body? a) Kidney b) Heart c) Lungs 4) A group of organisms that can interbreed and produce fertile offspring is called a: a) Population b) Ecosystem c) Species d) Habitat 5) What is the smallest unit of an element that retains the properties of that element? a) Molecule b) Compound c) Atom d) Proton

Science Quiz

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?