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Introductory Biology & Nature Facts

Advanced Biology

A foundational quiz exploring essential facts about living organisms, ecology, and natural processes.

biology animals nature environment ecology

15 Questions Easy Ages 10+ Sep 28, 2026

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About this Study Set

This study set covers Advanced Biology through 15 practice questions. A foundational quiz exploring essential facts about living organisms, ecology, and natural processes. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 15 questions from the Introductory Biology & Nature Facts study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which organelle in plant cells is responsible for carrying out photosynthesis?

A Mitochondrion
B Chloroplast
C Ribosome
D Golgi apparatus

2 What primary gas do green plants absorb from the atmosphere to perform photosynthesis?

A Oxygen
B Nitrogen
C Carbon dioxide
D Hydrogen

3 Which group of animals contains the only mammals capable of true, sustained flight?

A Flying squirrels
B Bats
C Sugar gliders
D Flying lemurs

4 What is the largest known animal species ever to exist on Earth?

A African elephant
B Blue whale
C Colossal squid
D Giraffe

5 What biological term describes animals that maintain a constant internal body temperature?

A Ectotherms
B Endotherms
C Heterotherms
D Poikilotherms

6 What primary ecological role do fungi play in a terrestrial ecosystem?

A Primary producers
B Decomposers
C Apex predators
D Herbivores

7 Which pigment is primarily responsible for absorbing light energy during photosynthesis in green plants?

A Carotenoid
B Anthocyanin
C Chlorophyll
D Xanthophyll

8 What is the process called when an insect undergoes a structural transformation from larva to adult?

A Ecdysis
B Metamorphosis
C Binary fission
D Gestation

9 What is the upper layer of an ocean where sunlight penetrates enough for photosynthesis to occur?

A Aphotic zone
B Abyssal zone
C Photic zone
D Hadal zone

10 Animals that possess a spinal cord encased in a vertebral column belong to which group?

A Invertebrates
B Vertebrates
C Arthropods
D Molluscs

11 What type of symbiotic relationship exists when both participating species benefit from the interaction?

A Parasitism
B Commensalism
C Mutualism
D Competition

12 Which vascular plant tissue is specifically responsible for transporting water and dissolved minerals upwards from roots?

A Phloem
B Xylem
C Cambium
D Epidermis

13 What tough structural polysaccharide makes up the exoskeleton of insects and crustaceans?

A Cellulose
B Keratin
C Chitin
D Collagen

14 What is the term for gas exchange occurring directly through an animal's moist skin, as seen in many amphibians?

A Pulmonary respiration
B Cutaneous respiration
C Gill respiration
D Tracheal respiration

15 Which cellular structure serves as the primary site of cellular respiration and ATP generation in eukaryotic cells?

A Mitochondrion
B Lysosome
C Endoplasmic reticulum
D Nucleolus

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