A Biologist Discovers a New Species of Organism Adapted to Living

question 15

Multiple Choice

A biologist discovers a new species of organism adapted to living in a deep underground cavern that provides no source of free water.The organism is eyeless and covered by fur,and it has a four chambered heart with a closed circulatory system.What excretory system adaptations to this extreme environment might the biologist expect to find?

• A)very long malpighian tubules
• B)very short malpighian tubules
• C)metanephridia with a large number of nephridiopores
• D)nephrons with long loops of Henle
• E)nephrons with short loops of Henle

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Definitions:

Lungs' Natural Defences

Mechanisms within the respiratory system that protect the lungs from infection and pollution, including mucous production and cilia action.

World Health Organization

An international public health agency of the United Nations dedicated to improving health conditions and achieving the highest level of health for all people worldwide.

Annual Human Death Rate

The number of deaths per year per 1,000 or 100,000 people in a population, used to measure the mortality rate of a specific area.

Indoor and Outdoor Air Pollution

The contamination of air within and surrounding buildings and structures, primarily caused by emissions from vehicles, industry, and natural sources.