Which of the following best defines a scientific theory?

• A statement that describes a consistent natural phenomenon

• A well-substantiated explanation based on evidence

• A guess with little evidence

• A mathematical equation

What is a scientific law?

• A prediction about future events

• A description of a natural relationship or principle, often expressed mathematically

• An untested hypothesis

• A type of cell

Tags

NGSS.HS-PS2-1

Which of the following is a prokaryote?

• Fungi

• Bacteria

• Plant

• Animal

Which organism is an autotroph?

• Human

• Mushroom

• Oak tree

• Dog

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a heterotroph?

• Grass

• Algae

• Cow

• Cyanobacteria

Tags

NGSS.MS-LS2-3

Which organism breaks down dead organic matter and recycles nutrients?

• Producer

• Decomposer

• Consumer

• Virus

What is the function of homeostasis in living organisms?

• To break down food

• To maintain a stable internal environment

• To produce energy

• To reproduce

Tags

NGSS.MS-LS1-3

Which organelle is responsible for photosynthesis?

• Ribosome

• Chloroplast

• Lysosome

• Golgi Body

Tags

NGSS.MS-LS1-6

What is the main function of ribosomes?

• Store genetic information

• Synthesize proteins

• Break down waste

• Control osmosis

Tags

NGSS.MS-LS1-2

NGSS.MS-LS3-1

What is osmosis?

• Movement of water across a semipermeable membrane

• Movement of proteins in the cell

• Production of energy

• Breakdown of carbohydrates

Tags

NGSS.MS-LS1-2