Biology Learning Videos – Dr. Bbosa

Ecology, adaptation of parts to ecology, internal systems (digestion, circulation, excretion, gaseous exchange, reproductive)

describes adaptations of the different parts of a rat to its ecology and the the different systems (i.e, digestion, circulation, excretion systems)

classification, external structures functions and adaptations, Ecology

Differences between nervous and endocrine system, action potential, impulse, none or nothing law, refractory period, synapse, transmission at the synapse, neuromuscular junction, functions of the synapses.

Aerobic respiration, anaerobic respiration, glycolysis, Krebs cycle, basal metabolic rate, fermentation

types of autotrophic nutrition, conditions necessary for photosynthesis, limiting factors of photosynthesis

Describes testing for starch, proteins, lipids, carbohydrate, vitamin C and catalyze enzyme

Properties, and uses of acids, bases, water, carbohydrates, lipids, proteins, and vitamins

A-level Biology
questions skillfully selected to test and aid understanding

Nucleotides, bases, evidences that DNA is the genetic material, comparison between the structure of DNA and RNA; replication, transcription, and translation

Well discussed structured questions from national exams

Questions selected to assist in understanding the topic at A-level

Fully discussed questions to promote understanding

Fully discussed revision questions

flower description of parts and adaptations

what is biology?, characteristics of living things, s1 biology, Bbosa Science

Stages of meiosis and mitosis and comparison between mitosis and meiosis

S1 biology lesson 4
Classification of organism and importance of classification

Definitions, instinctive behavior ( reflex, kinesis, taxis) sign stimulus, Learned behaviors ( habituations, classical conditioning, operant conditioning, insight learning, latent learning, imprinting, displacement activity, courtship behaviors, territorial behaviors.

Questions selected to test and enable understanding of ecology

Questions selected to test and facilitate understanding

Types of skeleton, locomotion in earthworm, locomotion in insects, human skeleton, function of bones, types of muscles and their differences and joints.

Specially selected questions to test and enable understanding of the topic

S1 biology lesson 3
Defines a cell, gives drawings plant and animals, gives differences between plant and animal cells. Appeals to University students to read hard and avoid wasting time

Drawings of plants and animal cell; functions of parts of plants and animal cells, differences between plants and animal cells. suitable for advanced level and institutions

Diffusion, osmosis, active transport, phagocytosis and pinocytosis for A-level students

Questions selected to test and facilitate understanding

Genetic pool, allele frequency, genotype frequency, genetic drift, genetic load, gene flow, Hardy-Weinberg principles and its calculations, speciation and isolation mechanisms, green revolution, artificial selection.

Questions selected to assist a candidate to understand the topic

Questions set to test and aid understanding of cell division at A-level

Coordination in animals 30 objective revision questions and answers

Fully discussed revision questions

Structured questions chosen to enable a student internalize the topics

Advantages and disadvantages of asexual reproduction, alteration of generations in bryophytes and ferns; comparison of life cycle of moss and ferns