Biology Learning Videos – Dr. Bbosa

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

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

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

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.

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

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

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

Well discussed structured questions from national exams

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

flower description of parts and adaptations

Fully discussed revision questions

Fully discussed questions to promote understanding

S1 biology lesson 4
Classification of organism and importance of classification

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

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

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

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

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

Fully discussed revision questions

Coordination in animals 30 objective revision questions and answers

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

Questions selected to test and enable understanding of ecology

Questions selected to assist a candidate to understand the topic

Questions selected to test and facilitate understanding

Selected structured question to test and aid understanding of the topic sexual reproduction in plants

Questions are skillfully selected test and enhance understanding

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.

Specially selected questions to test and enable understanding of the topic

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

Stages of meiosis and mitosis and comparison between mitosis and meiosis

Excretion and osmoregulation in marine invertebrates and vertebrates, excretion and osmoregulation fresh water animals and fish, excretion and osmoregulation in insects, excretion in plants, adaptations of xerophytes and halophytes

definition of prokaryotic and eukaryotic cell. differences between prokaryotic and eukaryotic cells

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.