Which Group Contains Only Metalloids

question 41

Multiple Choice

Which group contains only metalloids?

• A)Ni,Pd,Pt
• B)Si,Ge,As
• C)Ce,Pr,Nd
• D)Kr,Xe,Rn
• E)Po,Fr,Ac

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Definitions:

Nitrogenous Wastes

are byproducts of protein and nucleic acid metabolism that organisms must excrete, including urea, ammonia, and uric acid.

Malpighian Tubules

Excretory tubes uniquely found in the digestive system of insects and arachnids, serving to remove waste products from the blood.

Major Nitrogenous Waste

The primary form of nitrogen excreted by organisms, which varies among species (urea in mammals, uric acid in birds and reptiles, and ammonia in aquatic organisms).

Annelids

A phylum of segmented worms that includes earthworms and leeches, characterized by their segmented bodies and presence in diverse habitats.