Biology OST Practice

What is the basic structural and functional unit of all living organisms?

• cell

• tissue

• nucleus

• organ

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

What pigment is responsible for the green color of plants and is essential for photosynthesis?

• Carotene

• Hemoglobin

• Melanin

• Chlorophyll

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll?

• Photo editing

• Photosynthesis

• Photocopying

• Photosynthesis

Tags

NGSS.MS-LS1-6

In which organelle does photosynthesis occur?

• endoplasmic reticulum

• nucleus

• mitochondria

• chloroplasts

Tags

NGSS.MS-LS1-6

What is the branch of biology that deals with the relations of organisms to one another and to their physical surroundings?

• Ecology

• Physics

• Biology

• Chemistry

Tags

NGSS.MS-LS2-2

Which organ system is responsible for the exchange of gases in the body?

• Digestive system

• Respiratory system

• Endocrine system

• Circulatory system

What is the powerhouse of the cell?

• mitochondria

• ribosomes

• cytoplasm

• nucleus

Tags

NGSS.MS-LS1-2

What is the passing of traits from parents to offspring called?

• Transference

• Heredity

• Genetics

• Inheritance

Tags

NGSS.MS-LS3-2

What is the term for the process by which organisms maintain a stable internal environment?

• imbalance

• homeostasis

• equilibrium

• disruption

Tags

NGSS.HS-LS1-3

What is the study of heredity and variation in organisms?

• Biology

• Genetics

• Chemistry

• Physics

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4