CONTROL OF BEHAVIOR
abidaInternal mechanism of control of behavior is composed of nervous system and the endocrine system. It regulates animal behavior. These systems receive information from the external environment through sensory organs.…
DEVELOPMENT OF BEHAVIOR
Development of a normal behavior pattern requires genes. These genes code for the development of structures and organs involved in the behavior. For example, normal locomotion of vertebrates requires limbs.…
ANIMAL BEHAVIOUR
FOUR APPROACHES TO ANIMAL BEHAVIOR Naturalists and philosophers observed animal behavior for centuries. But understanding of this behavior was developed in last century. There are different approaches to study behavior.…
Chapter : 3 MULTICELLULAR & TISSUE LEVEL ORGANIZATION
saadiaMULTICELLULAR & TISSUE LEVEL ORGANIZATION EVOLUTIONARY PERSPECTIVE The scientists and common people are much interested in the multicellular level of organization. The swimmers of the tropical water have found Physalia…
OBJECTIVES OF ECOLOGYLL COMUNITIES
Multiple Choice Questions MCQs Four options are given at the end of each statement. You should encircle one option from them. All the attributes of lifestyle of an animal is…
MODEL SUBJECTIVE QUESTION OF ECOLOGYLL COMUNITIES
Write note on different aspects of community. Write note on community stability. Discuss trophic structure of ecosystem. Write note on pond ecosystem. Discuss ponds and river ecosystems. Describe the marine…
DEFINITIONS AND KEY POINTS OF ECOLOGYLL COMUNITIES
TERMS DEFINITIONS Community Community is composed of all populations living in an area. Dominant specie Species that determine community characteristics are called dominant species. Succession The process…
POLLUTION
Any detrimental change in an ecosystem is called pollution. Human activities cause most kinds of pollution. There is a large human population. Their demands for good sand services are increasing.…
ECOLOGICAL PROBLEMS
The human population is increasing ip the last few. hundred years. Humans are sing resources to provide need and wants for the growing population. But humans have lost the sense…
TERRESTRIAL ECOSYSTEMS
Terrestrial ecosystems can be divided into following main types: Temperate deciduous forest Coniferous alpine and boreal forests Tropical rain forests Grassland ecosystem Desert ecosystem Tundra ecosystem TEMPERATE DECIDUOUS FORESTS 1,…