Population growth – Types and Regulations
abidaPopulations are groups of individuals of the same species that occupy a given area at the same time. Each population has •unique attributes (characteristics). Two of the most important attributes…
INDIVIDUAL AND POPULATION
ANIMALS AND THEIR ABIOTIC ENVIRONMENT Habitat: All living (biotic) and nonliving (abiotic) characteristics of the a ea in which an animal lives is called habitat. Abiotic characteristics are a ailability…
OBJECTIVE
saadiaOBJECTIVE Multiple Choice Questions MCQs Four options are given, at the end of each statement. You should encircle one option from them. 1. Cambrian period was preset: (a) 300 million …
SUBJECTIVE QUESTIONS
SUBJECTIVE QUESTIONS Discuss evolutionary perspective of protists. Write note on pellicle and cytoplasm of protozoans. Give osmoregulation in protozoans. Write note on ingestion and digestion of food. Describe respiration and…
DEFINITIONS AND KEY POINTS FOR OBJECTIVES
DEFINITIONS AND KEY POINTS FOR OBJECTIVES TERMS DEFINITIONS Polyphyletic Groupsof organisms having separate origin are called polyphyletic. Pellicle A regular arrangement of microtubules is called the pellicle. Osmoregulation The maintenance…
FURTHER PHYLOGENETIC CONSIDERATIONS
FURTHER PHYLOGENETIC CONSIDERATIONS Fossilized protozoans: Protozoa originated about 1.5 billion years age. But there are only 30,000 known fossils of protozoans. These fossils are useless for study of evolution of…
5. THE CILIATES
5. THE CILIATES The phylum Ciliophora includes some of the most complex protozoa. Characteristics of the phylum Ciliophora are: 1. Ciliates are widelydistributed in freshwater and marine environments. 2. A…
OBJECTIVES OF MOLECULAR GENETIC CELLULAR CONTROL
Multiple Choice Questions MCQs Four options are given at the end of each statement. You should encircle one option from them. Franklin's X-ray data indicate that the helix makes one…
4. THE COCCIDEA
4. THE COCCIDEA Members of the phylum Apicomplexa are all parasites. There are following Characteristics of this phylum: 1. They have apical complex for penetrating host cells. 2. They have…
MODEL SUBJECTIVE QUESTION OF MOLECULAR GENETIC CELLULAR CONTROL
Describe double helix model of DNA. Draw the formulas of nitrogenous bases of DNA. Destribe process of DNA replication. Write note on types of RNA, Write note on genetic codes.…