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Biology Class

Whether it’s Science of Living things or the study of Microorganisms, find Biology classes to fit any need—all taught by highly-vetted expert instructors.

 

Science of Living things (BIO1)

Science is a systematic process that makes enquiry about living things. Living things have life; they can be animals, plants, or microscopic organisms.

  • Total # of live classes: 6

Classification of Living things (BIO2)

Common important features shared by a large variety of living organisms are used to classify them.

  • Total # of live classes: 9

Nutrition (BIO3)

All living things feed to remain alive and carry out various activities. Green plants are a class of plants that feed through the process of photosynthesis.

  • Total # of live classes: 9

Agriculture, Food Supply and Population Growth (BIO4)

Plants are classified based on evolutionary trends, structure, function, life span and agricultural uses.

  • Total # of live classes: 10

Basic Ecological Concepts (BIO5)​

Living organisms are constantly interacting with one another and their external environments. Ecology is the study of these multidimensional interactions of living organisms with living and non-living resources to create unique habitats and communities of living things across the world.

  • Total # of live classes: 10

Functioning Ecosystem (BIO6)

Activities of the living entities in ecosystems make them functional. Biotic components of an ecosystem are majorly autotrophs (green plants) and heterotrophs (animals).

  • Total # of live classes: 7

Ecological Management (BIO7)

There are different types of associations among living organism as they interact with one another. Some are advantageous to both organisms, harmful to either of the organisms while others have neither benefit nor adverse effects.

  • Total # of live classes: 6

Introduction to Microorganisms (BIO8)

Microorganisms belong to an interesting class of living things. They are everywhere and invisible to the eyes. You need a magnifying lens or microscope to see them.

  • Total # of live classes: 6

Microorganisms and Health (BIO9)

Vectors and pathogens cause diseases. Their activities should be controlled to avoid the spread of infectious diseases. The use of antiseptics, antibiotics, high temperature and dehydration are some of the ways these harmful organisms can be controlled

  • Total # of live classes: 9

Cell: Living Unit and Structure (BIO10)

The cell is the basic structural and functional unit of life. Organisms are composed of cells at unicellular and multicellular levels. Major function of cells includes the transport of materials within and outside the cell.

  • Total # of live classes: 9

Cell: Properties and Functions (BIO 11)

Plants and animals need essential nutritional elements in the right proportions for growth and reproduction. Some nutrients are major or minor while others are needed in large or small quantities. These nutrients ensure that there is generation of energy for all cellular activities.

  • Total # of live classes: 10

Supporting Tissues and Systems (BIO 12)

There are different supporting tissues and systems in plants and animals.

  • Total # of live classes: 8

Feeding Mechanisms and Digestive systems (BIO13)

Animals have various ways of obtaining and ingesting food. It is important that food eaten is digested.

  • Total # of live classes: 6

Transport Systems and Mechanisms (BIO14)

Transport systems are needed in plants and animals for adequate delivery of gases and nutrients, and the removal of waste products from body cells. 

  • Total # of live classes: 9

Gaseous Exchange and Respiratory Systems (BIO15)

Gaseous exchange can occur in animals and plants through body coverings or specialized respiratory or gas exchange structures. Gaseous exchange can happen between organisms and their external environments.

  • Total # of live classes: 9

Excretory Systems and Mechanisms (BIO16)

Activities of the living entities in ecosystems make them functional. Biotic components of an ecosystem are majorly autotrophs (green plants) and heterotrophs (animals).

  • Total # of live classes: 6

Aquatic and Terrestrial Habitats (BIO17)

Habitats refer to places where organisms live. It can be aquatic or terrestrial. Terrestrial habitats are those found on land, like forests, grasslands, deserts, shorelines and wetlands.

  • Total # of live classes: 9

Ecology of Population (BIO18)

Various activities of organisms like population explosion, availability and shortage of food, and overcrowding result in shifts in the ecosystem. These shifts further result in different kinds of succession.

  • Total # of live classes: 8

Regulation of the Internal Environment (BIO19)

Homeostasis is the maintenance of a steady internal environment. It is controlled largely by the brain, especially the hypothalamus.

  • Total # of live classes: 7

Nervous Co-ordination (BIO20)

Living organisms have the ability to respond to various stimuli. There is a nervous coordination that helps in the transfer of messages around the body of an organism by means of various nerves.

  • Total # of live classes: 9

Sensory Receptors and Organs (BIO21)

Sensory receptors and organs are specialized organs like the eye, nose, ear, skin and mouth. They help to convey raw sensory stimuli and translate them into signals the nervous system can use.

  • Total # of live classes: 7

Sexual Reproduction: Systems and Behaviour (BIO22)

Sexual reproduction is the production of new organisms by the combination of genetic information of two individuals of different sexes.

  • Total # of live classes: 12

Development of New Organisms and Fruits (BIO23)

All living things undergo one form of change or another throughout their life time. Metamorphosis is a biological process of transformation by which an organism develops from birth into an adult by significant changes in the organism’s body structure through cell growth and differentiation.

  • Total # of live classes: 9

Variation, Adaptation for Survival and Evolution (BIO24)​

Variation refers to differences that occur within the individuals of a species; usually due to the effects of inherited characteristics and the environment.

  • Total # of live classes: 7
genetics

Genetics (BIO25)​

Genetics is a branch of biology concerned with the study of genes, genetic variation and heredity in organisms. Heredity is the transfer of character from parents to offspring through gametes.

  • Total # of live classes: 9