8th Grade Biology Quizzes , Questions & Answers

Recent Biology Quizzes

This assessment focuses on the digestive system, specifically the stomach and intestines. It evaluates your understanding of key functions such as the role of rugae, the pyloric sphincter, and nutrient absorption in the small...

Questions: 8 | Attempts: 12 | Last updated: Aug 12, 2026

Sample Question
What is the function of rugae in the stomach?

To produce hydrochloric acid

To allow the stomach to expand as it fills with food

To prevent acid reflux

To control the release of chyme into the small intestine

The 3 Domains of Life Classification

This assessment focuses on the three domains of life in biological classification, evaluating your understanding of prokaryotes, eukaryotes, and their characteristics. You'll explore key concepts such as cell structure, genetic...

Questions: 8 | Attempts: 11 | Last updated: Aug 10, 2026

Sample Question
What is a 'Domain' in biological classification?

The smallest and most specific level of classification

The highest and broadest level of biological classification

A group of organisms that can interbreed

A classification level below Kingdom

The 6 Kingdoms of Life Classification

This assessment focuses on the six kingdoms of life, evaluating your understanding of cell types, nutritional modes, and unique characteristics. It covers key concepts such as prokaryotic vs. eukaryotic cells, the role of fungi,...

Questions: 8 | Attempts: 12 | Last updated: Aug 10, 2026

Sample Question
What is the cell type of Eubacteria?

Eukaryotic

Prokaryotic

Multicellular

Unicellular only

The Process of Photosynthesis

This assessment focuses on the process of photosynthesis, evaluating key concepts such as the roles of chlorophyll, ATP, and the Calvin cycle. Understanding these elements is crucial for grasping how plants convert sunlight into...

Questions: 10 | Attempts: 10 | Last updated: Aug 10, 2026

Sample Question
What is photosynthesis?

The process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar

The process by which plants absorb nutrients from the soil to grow

The process by which plants release carbon dioxide and absorb oxygen

The process by which plants convert glucose into carbon dioxide

Nutrition in Living Things & Photosynthesis

This assessment focuses on the process of photosynthesis, evaluating your understanding of how plants convert light energy into food, specifically glucose. Key concepts include the role of chlorophyll, the production of oxygen,...

Questions: 8 | Attempts: 10 | Last updated: Aug 6, 2026

Sample Question
What is the process by which plants make food from water and carbon dioxide using light energy?

Respiration

Photosynthesis

Digestion

Transpiration

Gregor Mendel and the Fundamental Laws of Heredity

This quiz focuses on Gregor Mendel's fundamental laws of heredity, assessing knowledge of key concepts like alleles, inheritance patterns, and chromosome structure. It is useful for learners seeking to understand genetic...

Questions: 25 | Attempts: 14 | Last updated: Aug 4, 2026

Sample Question
What is the term for different versions of the same gene?

Chromosomes

Alleles

Gametes

Histones

Biological Classification

This assessment focuses on biological classification, evaluating your understanding of taxonomic hierarchy, the characteristics of living organisms, and the principles of scientific naming. It covers key concepts such as the...

Questions: 8 | Attempts: 10 | Last updated: Jul 15, 2026

Sample Question
Which of the following is the correct order of taxonomic classification from broadest to most specific?

Kingdom, Phylum, Class, Order, Family, Genus, Species

Species, Genus, Family, Order, Class, Phylum, Kingdom

Kingdom, Class, Phylum, Order, Family, Genus, Species

Phylum, Kingdom, Class, Order, Genus, Family, Species

Plant Transportation Systems and Processes

This assessment focuses on plant transportation systems, evaluating knowledge of vascular tissues, water movement, and the impact of nutrients on plant health. Understanding these concepts is crucial for anyone studying plant...

Questions: 10 | Attempts: 15 | Last updated: Jul 13, 2026

Sample Question
Which vascular tissue is responsible for transporting organic nutrients such as sucrose from leaves to other parts of the plant?

Xylem

Phloem

Cortex

Epidermis

Characteristics of Living Things and Cell Biology

This quiz focuses on the characteristics of living things and cell biology. It evaluates your understanding of the organization of cells into tissues and systems, as well as the functions of specialized cells, such as palisade...

Questions: 25 | Attempts: 12 | Last updated: Jul 11, 2026

Sample Question
Which of the following correctly lists all seven life processes represented by MRS GREN?

Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition

Movement, Reproduction, Sensitivity, Growth, Respiration, Elimination, Nutrition

Metabolism, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition

Movement, Respiration, Synthesis, Growth, Reproduction, Excretion, Nutrition

Discovery of Cells and Microorganisms

This assessment explores the discovery of cells and microorganisms, evaluating knowledge about key figures like Robert Hooke and Antonie van Leeuwenhoek. It covers essential concepts such as cell structure, organization, and the...

Questions: 8 | Attempts: 17 | Last updated: Jul 4, 2026

Sample Question
Who introduced the word 'cell' after observing cork under a microscope in 1665?

Antonie van Leeuwenhoek

Robert Hooke

Louis Pasteur

Charles Darwin

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