Match Each Organ System with Its Description

question 41

Multiple Choice

Match each organ system with its description.
-muscular system

• A)exchanges gases with the environment
• B)coordinates body activities through the conduction of electrical impulses
• C)helps regulate internal water balance and pH
• D)provides leverage for body movements
• E)moves body parts
• F)converts ingested matter into molecules and ions that can be absorbed into the body
• G)covers external body surfaces and protects against injury and infection
• H)returns excess fluid to the body and protects it against pathogens
• I)passes on genes to the next generation
• J)coordinates body activities though secretion of hormones
• K)distributes water and nutrients throughout the body

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Definitions:

Population Genetics

The study of the distributions and changes of allele frequency in a population, as influenced by evolutionary processes such as natural selection, gene flow, mutation, and genetic drift.

Community Dynamics

The variations, changes, and interactions between species within a community over time.

Biogeography

The study of the distribution of species across space (geography) and time.

Fitness

In evolutionary terms, fitness refers to the ability of an organism to survive and reproduce, thus passing its genes to the next generation.