Biological Regulation and Health

Biology

This content covers key biological concepts including mechanisms of regulation, nervous and endocrine systems, vegetative functions and metabolism, evolutionary adaptations in digestion, respiration, circulation, and excretion, and health and hygiene measures.

Homeostasis Physiology Health

20 Questions Medium Ages 14+ Jan 17, 2026

Choose a Study Format

Quiz

Test your knowledge with multiple-choice questions and instant feedback.

Flashcards

Flip through cards to review terms, definitions and key concepts.

True or False

Quickly decide if statements are true or false to reinforce understanding.

Match Game

Race against time to match questions with their correct answers.

Study Guide

Read through all topics and answers as a comprehensive study reference.

Listen Mode

Listen to questions and answers read aloud — great for audio learners on the go.

About this Study Set

This study set covers Biology through 20 practice questions. This content covers key biological concepts including mechanisms of regulation, nervous and endocrine systems, vegetative functions and metabolism, evolutionary adaptations in digestion, respiration, circulation, and excretion, and health and hygiene measures. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 20 questions from the Biological Regulation and Health study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the process by which living beings maintain balance?

A Metabolism
B Regulation
C Excretion
D Respiration

2 Which component of a regulation mechanism captures a stimulus?

A Modulator
B Effector
C Receptor
D Efferent pathway

3 What is the primary basis of the nervous system's regulation?

A Hormones
B Electrical impulses
C Chemical messengers
D Glands

4 What are the chemical messengers used in the endocrine system?

A Neurons
B Hormones
C Stimuli
D Reflexes

5 Which gland secretes insulin when blood glucose increases?

A Adrenal gland
B Thyroid gland
C Pancreas
D Pituitary gland

6 What type of nutrition is characteristic of producers?

A Heterotrophic
B Autotrophic
C Decomposers
D Consumers

7 Which type of digestion is more specialized and flows in one direction?

A Intracellular
B Extracellular
C Cellular
D Digestive vacuole

8 What is the main function of respiration at the cellular level?

A Waste elimination
B Energy production
C Water balance
D Nutrient absorption

9 Which system is responsible for eliminating metabolic waste to maintain internal stability?

A Respiratory system
B Circulatory system
C Excretory system
D Digestive system

10 The renal system regulates which of the following?

A Body temperature
B Blood glucose levels
C Water balance, osmotic pressure, ions, and blood pH
D Muscle contraction

11 What is an evolutionary adaptation for digestion in mammals?

A Vacuoles
B Complete digestive tubes with mouth and anus
C Protonephridia
D Malpighi tubules

12 Which of the following is an example of indirect respiration?

A Direct respiration in bacteria
B Gills in fish
C Photosynthesis in plants
D Cellular oxidation

13 An open circulatory system is found in which group?

A Annelids
B Humans
C Arthropods
D Vertebrates

14 What are the excretory structures found in vertebrates?

A Protonephridia
B Malpighi tubules
C Nephrons
D Digestive tubes

15 Which of these is a recommended hygienic measure?

A Consuming toxic substances
B Sleeping 6-8 hours
C Avoiding water intake
D Being sedentary

16 What are the main parts of a microscope mentioned?

A Cell wall, nucleus, cytoplasm
B Ocular lens, objective lens, stage, and macrometric screw
C Mitochondria, ribosomes, endoplasmic reticulum
D Proton, neutron, electron

17 What is the physiological action based on the nervous system's reflex arc?

A Anatomical basis
B Reflex action
C Chemical messenger
D Homeostasis

18 What is the role of feedback in a regulatory mechanism?

A To initiate the stimulus
B To process information
C To allow variation or maintenance of the response
D To capture the stimulus

19 What is the primary function of vegetative functions and metabolism?

A Reproduction
B Maintaining life and energy exchange with the environment
C Locomotion
D Sensory perception

20 What is glucagon secreted by the pancreas in response to?

A Increased glucose levels
B Decreased glucose levels
C Increased stress
D Decreased water intake

📱

Study on the go

Download Quixly and access all study formats on your phone — anywhere, anytime.