Advanced Environmental Biology & Animal Physiology

Advanced Biology

Explore fascinating biological adaptations, physiological systems, and ecological interactions across diverse organisms.

biology ecology physiology animals environment

9 Questions Medium Ages 5+ Oct 22, 2026

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About this Study Set

This study set covers Advanced Biology through 9 practice questions. Explore fascinating biological adaptations, physiological systems, and ecological interactions across diverse organisms. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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1 What primary source of energy fuels deep-sea hydrothermal vent ecosystems where sunlight cannot penetrate?

A Hydrogen sulfide oxidized by chemotrophic bacteria
B Methane gas absorbed directly by giant tube worms
C Thermal radiation emitted by hot volcanic rocks
D Dissolved organic carbon from surface run-off

2 Which tissues or organs provide the primary pathway for gas exchange in adult lungless salamanders (Plethodontidae)?

A Book lungs
B Skin and the lining of the mouth cavity
C External gills
D Tracheal tube networks

3 How do Crassulacean Acid Metabolism (CAM) plants minimize photorespiration and water loss in arid environments?

A By fixing carbon dioxide into malate at night
B By fixing carbon dioxide in bundle sheath cells at midday
C By opening stomata only during low-humidity afternoons
D By using RuBisCO without any affinity for oxygen

4 Which specialized mammalian tissue is primarily responsible for non-shivering thermogenesis during arousal from hibernation?

A White adipose tissue
B Brown adipose tissue
C Skeletal muscle tissue
D Hyaline cartilage tissue

5 Coral bleaching occurs primarily when environmental stress causes stony corals to expel which photosynthetic endosymbionts?

A Cyanobacteria
B Zooxanthellae
C Green microalgae
D Nitrifying archaea

6 What primary nitrogenous waste product do terrestrial insects excrete to conserve water?

A Ammonia
B Urea
C Uric acid
D Trimethylamine oxide

7 What feature of the avian respiratory system enables continuous, unidirectional airflow through the lungs during inhalation and exhalation?

A Diaphragmatic muscular contraction
B A system of anterior and posterior air sacs
C Expandable alveoli lined with lipid surfactant
D Bidirectional bronchial movement

8 Which anatomical structure enables regional endothermy in fast-swimming predatory fish such as bluefin tuna and lamnid sharks?

A Rete mirabile
B Ampullae of Lorenzini
C Swim bladder
D Lateral line system

9 Which key mineral nutrient do mycorrhizal fungi primarily supply to host plants in exchange for photosynthetically derived carbohydrates?

A Potassium
B Phosphorus
C Magnesium
D Calcium

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