ENVI 2ND EXAM

• entire pool from which a statistical sample is drawn.

  Population
• refers to the shift in the history of birth and death rates in society.

  Demographic Transition
• • the measurement of the given population over volume respondents.

  Population Density
• referring to the number of death in a given population.

  Mortality Rate
• a ratio of males to females in a population. ; sexually reproducing species

  Sex Ratio
• • referring in two ways; human demography has the potential for the reproduction of a listed population
  • study in the biological community
  • similar to fertility, wherein it is a natural way to produce offspring

  Fecundity
• referring to the statistical features of the human population.

  Demography
• referring to the movement of the people  of different sectors from one country to another.

  Migration
• general term meaning the occurrence of disease and illness.

  Morbidity
• all the different kinds of life you'll find in one area the variety of animals, plants, fungi.

  Biodiversity
• is the practice and science of categorization or classification. 

  Taxonomy
• humans and environment, in which our daily lives take place, are intricately interwoven.

  PEOPLE AND THE ENVIRONMENT
• refers to the number of people living in a particular area

  Human Population
• • world population now stands at around __billion inhabitants,

  7.8
• discussions of population dynamics, birth, death, and growth rates are expressed as ___________

  percentages
• it is common to state these rates in terms of the number per 1,000 referring to the ___

  crude rate
• a list of terms that used frequently in discussions of human population. 

  crude birth rate,

  crude death rate, and

  crude growth rate.
• defined as a group of individuals of the same species living and interbreeding within a given area.

  Population
• rely on a series of statistical measures and to describe the population.

  demographic parameters
• The rise in the number of people on Earth is referred to as

  POPULATION GROWTH
• frequently thrive in disturbed habitats where urbanization has occurred and outcompete native species

  invasive species
• The vast variety of life on Earth is referred to as

  biodiversity
• __ million species of plants and animals are thought to exist, according to scientists.

  8.7
• __ million species, the most of whichare insects, have been recognized and described.

  1.2
• Beetles, snakes, antelopes, and many other species can be found on


  a single meadow.
• The warm, humid temperature of tropical regions is an example of _______________ for plant growth in ecosystems that support the greatest biodiversity.

  an optimum environmental setting
• that are too small to perceive with the naked eye can also exist in ecosystems.

  Species
• The world has certain regions with greater biodiversity than others, including parts of

  Mexico, South Africa, Brazil, the southwestern United States, and Madagascar.
• are also home to endemic species, which can only be found in a single place.

  Hotspots
• has increased at an unheard-of rate as a result of these concerns.

  The rate of extinction of species
• is the branch of biology that classifies all living things

  Taxonomy
• It was developed by the Swedish botanist ____ who lived during the 18th Century, and his system of classification is still used today.

  Carolus Linnaeus
• Carolus Linnaeus invented _____, the system of giving each type of organism a genus and species name.

  binomial nomenclature
• He also developed a classification system called the

  taxonomic heirarchy
• eight ranks from general to specific:

  domain, kingdom, phylum, class, order, family, genus, and species.
• This level represents the highest taxonomic rank, grouping organisms

   that have cells with membrane-bound organelles and a distinct nucleus.

   All animals, plants, fungi, and protists belong to this domain.

  DOMAIN-EUKARYA
• Animals belong to this kingdom, characterized by multicellular, eukaryotic organisms that are heterotrophic, meaning they obtain their nutrients by consuming other organisms.

  KINGDOM-ANIMALIA
• Chordates are animals possessing a notochord, a flexible rod-like structure that provides support during

   embryonic development. Animals within this stage also have a dorsal nerve cord, pharyngeal slits,

   a post-anal tail, and a segmented body at some point in their lives.

  PHYLUM-CHORDATA
• Mammals are warm-blooded vertebrates characterized by mammary glands that produce milk to nourish

  their young, hair or fur covering most of their bodies, and a four-chambered heart.

  They also typically give birth to live young.

  CLASS-MAMMALIA
• Members of the order Carnivora are carnivores, meaning they primarily consume flesh.

   This order includes a wide range of mammals such as dogs, cats, bears, and seals,

  all of which possess specialized teeth and claws for hunting and feeding on meat.

  ORDER-CARNIVORA