Exam 1: Basic Concepts in the Biology of Aging

Choose the best definition of life span.

Nonsocial animals tend to live longer than social animals.

The sum of all biological events occurring over an organism's life span is called:

Which type of nonhuman primate is the most widely used in biogerontology?

The different life spans of the several types of honeybees are closely linked to their ______ schedule.

The stage of the life span during which functional change is generally positive is defined as:

Eutherians are:

The gene involved in Werner syndrome,wrn,seems to affect:

The evolutionary sequence of events involved in the development of a species or groups of organisms is known as:

Genes regulate the aging process.

Without a sophisticated vascular,neural,or endocrine system,yeast tend to be good models for studying environmental factors that affect aging.

Which type of animals tend to have high metabolic rates and long life span compared with animals of similar body size?

The cost of housing nonhuman primates limits their use in biogerontology.

______ are mitotic cells that do not have a finite life span;they either are derived from cancerous tumors or are normal cells that have had their internal biochemistry altered in order to make them immortal.

Prior to the beginning of the twentieth century,the primary cause of death in human populations was:

What is/are the limitation(s)of functional-based and mortality-based aging definitions?

Which of the four basic cell systems is most widely used in biogerontology?

Which two factors most likely contributed to the extended longevity seen in some mammals?

A period during which function remains at optimal levels or slowly declines defines which stage of aging?

Wild animals cannot be used as models for aging research because aging does not occur in the wild. Definitions of Biological Aging