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Biology Quizzes, Questions & Answers

Recent Biology Quizzes

Test Your Brain With Facts and Questions About The Brain: Neuroscience Quiz

Questions: 20 | Attempts: 919 | Last updated: Mar 20, 2025

Sample Question
What if we lined up all the neurons in our body? How long would that line stretch?

100,000,000,000 neurons x 10 microns= 1000 km or about 600 miles

100,000,000,000,000 neuron x 10 microns= 5000 km or about 500 miles

10 neurons x 10 microns= 100 km or about 60 miles

1,000 neurons x 10 microns= 1000 km or about 600 miles

IB Biology Practice Test Quiz

Questions: 40 | Attempts: 1580 | Last updated: Mar 22, 2025

Sample Question
The lengths of a sample of tiger canines were measured. 68 % of the lengths fell within a range between 15 mm and 45 mm. The mean was 30 mm. What is the standard deviation of this sample?

5 mm

15 mm

7.5 mm

30 mm

Aaus Test - Part 2

Questions: 56 | Attempts: 205 | Last updated: Mar 14, 2025

Sample Question
Breathing dry air, a scuba diver tends to become dehydrated while diving due to:

Excessive perspiration

Moisturizing dry inhaled air

Saltwater absorbing moisture from the skin

The extreme amount of energy expended during a dive

Food Nutrient Pre-test Quiz

Questions: 6 | Attempts: 914 | Last updated: Mar 21, 2025

Sample Question
What is the current USDA food guide?

Food Pyramid

My Plate

7th Grade Science Assessment

Questions: 20 | Attempts: 263 | Last updated: Oct 2, 2025

Sample Question
What is the Scienctific Method in order from start to finish for an experiment?

Materials, data and results, hypothesis, problem, conclusion, procudures

Problem, hypothesis, materials, procedures, data and results, conclusion

Hypothesis, problem, data and results, materials, procedures, conclusion

Data and results, materials, hypothesis, problem, procedures, conclusion

Brain Bee Challenge: Round IV

Questions: 10 | Attempts: 5540 | Last updated: Oct 22, 2025

Sample Question
Peripheral nerves from the thoracic region of the spinal cord serve what part of the body?

The trunk

The legs

The head and neck

Bio Exam Quiz #11

Questions: 23 | Attempts: 185 | Last updated: Mar 22, 2025

Sample Question
What are the functions of the Midbrain?

Coordinate visual & audio reflexes, maintain consciousness, direct motor patterns at subconscious level

Relay sensory info to other areas of brain stem or thalamus, regulate autonomic function

Plays role in regulation of heart rate, flight or fight, and linking emotions to specific memories

A Human Biology Quiz Questions and Answers

Questions: 5 | Attempts: 426 | Last updated: Sep 20, 2025

Semester 2 Neuro, Quiz 9 – Diencephalon

Questions: 10 | Attempts: 3919 | Last updated: Mar 21, 2025

Sample Question
Which thalamic nucleus would be primarily responsible for processing input associated with activation of pacinian corpuscles in your left hand?

Left dorsomedial nucleus of the thalamus

Left pulvinar nucleus of the thalamus

Left ventroposteromedial (VPM) nucleus of the thalamus

Right lateral geniculate nucleus of the thalamus

Right ventroposterolateral (VPL) nucleus of the thalamus

Right ventral anterior nucleus of the thalamus

Ultimate Knowledge Trivia On Neuro! Quiz

Questions: 12 | Attempts: 1125 | Last updated: Mar 22, 2025

Sample Question
A 68~year-old woman is brought to the emergency department by her godson. He explains that she unexpectedly began to have sudden movements of her left arm. The examination reveals a slender woman with hypertension and periodic, uncontrollable flailing movements of her left upper extremity suggestive of hemiballismus. Assuming this resulted from vascular occlusion, MRI would most likely show an infarction in which of the following structures?

Left substantia nigra

Left subthalamic nucleus

Right motor cortex

Right substantia nigra

Right subthalamic nucleus

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