natural selection OF PRINCIPLE OF BIODIVERSITY

IT DESCRIBES HOW VARIETY OF LIFE ON EARTH FUNCTIONS AND IS SUSTAINED

•REFERS TO HERITABLE DIFFERENCES AMONGS SPECIES RESULTING IN GENETIC TRAITS OF LIVING ORGANISM INHERITED FROM THEIR PARENTS.

VARIATION-

SIMPLE DUE TO OVER REPRODUCTION WHICH IS IMPLIES THE PARENTS HAVE ENOUGH FOOD AND RESOURCES TO SURVIVE AND REPRODUCE

OVERPRODUCTION

is when an animal internal system changes due to the surrounding temperature, it is called hibernation or estivation.

PHYSIOLOGICAL ADAPTATION

is when the external feature changes in order to adapt to the environment

STRUCTURAL ADAPTATION

¨Due to harsh condition, in order to adapt an animals behavior changes.

¨Behavior may be migration or courtship.

BEHAVIORAL ADAPTATION

MOST CHARACTERISTICS OF BEHAVIORAL ADAPTATIONS

MIGRATION and courtship

When an animal moves one place to another when they cannot adapt or is difficult

MIGRATION

Done by animal in order to find mate and reproduce.

COURTSHIP

Many individual posses traits in every generation as long as the environment is suitable for survival and reproduction

DESCENT FOR MODIFICATION

¨A scientific study about embryos and their development.

EMBRYOLOGY

¨Refers to the physical structure of the animal about there origin, position and history.

HOMOLOGOUS STRUCTURE

¨A part or structure of the animal that gradually disappears

VESTIGIAL STRUCTURE

¨Genes shows that animals evolve due to basic hereditary units

GENETICS

Remains of plants and animals that are founds. It is formed by different sediments get buried over them

FOSSILS