The Effective Population Size Is Often Lower Than the Census

question 2

Multiple Choice

The effective population size is often lower than the census size of a population because

• A) inbreeding depression decreases the fitness of inbred progeny.
• B) populations cannot recover from decreases in heterozygosity.
• C) scientists cannot accurately count the number of individuals in a population.
• D) individuals contribute unequally to future generations.

---

Definitions:

Stress Hormones

Chemical substances, such as cortisol and adrenaline, released into the bloodstream in response to stress, affecting physiological functions.

Immune System

The body's defense mechanism against pathogens, comprising various organs, cells, and proteins that work together to protect the body from disease.

Cardiovascular Disease

A class of diseases that involve the heart or blood vessels, including coronary artery disease, hypertension, and stroke.

Symptoms Of Depression

Symptoms of depression include a persistent feeling of sadness or loss of interest, leading to significant impairment in daily life.