Filaments and lamellae are most characteristic of the respiratory system in _______.

A. fish
B. insects
C. reptiles
D. mammals


Ans: A. fish

Biology & Microbiology

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The molecule of the extracellular matrix of animal cells that is associated with joint lubrication and friction reduction is

A) glycosaminoglycan. B) proteoglycan. C) hyaluronate. D) pectin. E) fibronectin

Biology & Microbiology

The organisms that most specifically utilize light energy to make organic molecules from inorganic molecules are

A. photohemitrophs. B. heterotrophs. C. photoisotrophs. D. photoautotrophs. E. photoheterotrophs.

Biology & Microbiology

What is the correct rank order for relative energetic cost (most to least) of the primary nitrogenous wastes generated by different animals?

A. ammonia ? urea ? uric acid B. uric acid ? urea ? ammonia C. urea ? uric acid ? ammonia D. ammonia ? uric acid ? urea E. urea ? ammonia ? uric acid

Biology & Microbiology

Comparison of common chromosomal banding patterns between humans and 5 other species are given below. Based on these data, humans are least related to

A) gorillas: 99% common chromosome bands. B) African green monkeys: 95% common chromosome bands. C) domestic cats: 35% common chromosome bands. D) mice: 7% common chromosome bands.

Biology & Microbiology