In Arctic Ecosystems, ________ Are Used as Bioindicators of Heavy

question 47

Multiple Choice

In arctic ecosystems, ________ are used as bioindicators of heavy metal contamination.

• A)polar bears
• B)mosses and lichens
• C)vascular plants
• D)slugs and earthworms

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Definitions:

Meiosis

A type of cell division that reduces the number of chromosomes by half, resulting in the production of four gamete cells, essential for sexual reproduction.

Chromosome Combinations

The various possible arrangements of chromosomes that can occur during sexual reproduction due to the process of meiosis.

Diploid Organism

An organism whose cells contain two sets of chromosomes, one set inherited from each parent.

Meiosis

A type of cell division that reduces the chromosome number by half, resulting in the production of four genetically distinct haploid gametes.