Tertiary Catalogue

The terrestrial zone is the area of land around the pond that is not regularly inundated with water. This video looks at biotic and abiotic factors in the terrestrial zone, discussing the flora and fauna found in this zone and the potential impact human activity can have on the whole pond. Informative diagrams and in-the-field footage make this an essential resource for senior secondary biology students. Show Less

The organisms found in the littoral zone are critical for the biological cycling of abiotic factors. This video explores the complex relationships between primary producers, lower level consumers and higher order consumers and how they can be modelled using food chains and food webs. Informative diagrams and in-the-field footage make this an essential resource for senior secondary biology students. Show Less

The euphotic and profundal zones, which together comprise the limnetic zone, are home to a variety of organisms. This video looks at the characteristics of primary producers and consumers and how energy is transferred and lost through the different levels in a food chain. Informative diagrams and in-the-field footage make this an essential resource for senior secondary biology students. Show Less

The benthic zone teems with life and biodiversity and acts like the digestive system of the pond. This video explains how organisms here have adapted to living in conditions of low light and low oxygen and why they are crucial for processes of nutrient cycling and maintaining water quality. Informative diagrams and in-the-field footage make this an essential resource for senior secondary biology students. Show Less

The plants found in the littoral zone play an important role in maintaining and supporting the biotic and abiotic conditions of a healthy pond. This video explains how these plants photosynthesise, looking at the role reeds and rushes play in transforming sunlight into energy that flows through the ecosystem. Informative diagrams and in-the-field footage make this an essential resource for senior secondary biology students. Show Less

A pond is an ideal place to see how living and non-living things interact with each other and their environment. This video introduces key aspects of pond ecosystems, explaining how abiotic factors define the four pond zones and how relationships between organisms can be modelled with food chains and food webs. Informative diagrams and in-the-field footage make this an essential resource for senior secondary biology students. Show Less

This programme looks at two naturally occurring phenomena that are essential to the survival of plants, light and water. It covers photosynthesis and cellular respiration, and compares the products and reactants, and other characteristics of each process. The vital role of water in plants is explored, including the movement of water into a plant through its roots, transportation and translocation of water and nutrients inside a plant, and the ultimate release of water vapour into the atmosphere, or transpiration. It explains the function of vascular tissues, or xylem and phloem, and their importance in moving various substances around a plant. The junior programme covers the material at a more general and simplistic level, which is suitable for lower/middle secondary levels. The senior programme covers the material in more complex terms, and is pitched at students of senior biology. Show Less

This programme examines the form and functioning of plants. It looks at the characteristics of all living things, including cellular respiration, photosynthesis, growing and repairing, responding to stimuli, taking nutrients from the environment, and reproduction – and emphasises how these occur in plants. Show Less

Evolution is the gradual change that can be seen in a population’s genetic composition, from one generation to the next. The three main mechanisms of evolution include genetic drift, mutation and natural selection. The first part concentrates on Genetic Drift with the use of a model to demonstrate its effect on small and large populations. An example will also be used to explain how Genetic Drfit can lead to the formation of a new biological species over a long period of time. Then models of Mutation and Natural Selection are demonstrated and the results carefully tabulated and analysed. Examples of particular populations, which have likely evolved through each mechanism, are also highlighted. Show Less

This programme is an introduction to botany for senior secondary students. It explores the remarkable world of plants - without them, no other life form would exist. It looks at characteristics of all living things, including cellular respiration, growing and repairing, responding to stimuli, taking nutrients from the environment, and reproduction - and emphasises how these occur in plants. Both sexual and asexual reproduction are covered ad the role of chlorophyll, chloroplasts and sunlight is highlighted. The programme also explores the form and vital functions of roots, stems and leaves. Show Less