Episode of Series “Biology program; unit 1. Ecology”.
Shows how environmental conditions such as natural enemies and food factors can help increase or reduce births and deaths. Discusses how humans have created the birth surplus over death called the population explosion. Suitable for upper secondary level.
Content notification
Our collection comprises over 40,000 moving image works, acquired and catalogued between the 1940s and early 2000s. As a result, some items may reflect outdated, offensive and possibly harmful views and opinions. ACMI is working to identify and redress such usages.
Learn more about our collection and our collection policy here. If you come across harmful content on our website that you would like to report, let us know.
How to watch
Collection
In ACMI's collection
Credits
Collection metadata
ACMI Identifier
008558
Language
English
Subject categories
Animals & Wildlife → Animal populations
Climate, Environment, Natural Resources & Disasters → Ecology
Climate, Environment, Natural Resources & Disasters → Environment - Social aspects
Climate, Environment, Natural Resources & Disasters → Environmental education
Climate, Environment, Natural Resources & Disasters → Natural resources - Environmental aspects
Climate, Environment, Natural Resources & Disasters → Overpopulation
Climate, Environment, Natural Resources & Disasters → Plant population
Documentary → Documentary films - United States
Economics, Philosophy, Politics, Religion & Sociology → Environment - Social aspects
Economics, Philosophy, Politics, Religion & Sociology → Human ecology
Economics, Philosophy, Politics, Religion & Sociology → Overpopulation
Education, Instruction, Teaching & Schools → Biology - Study and teaching
Educational & Instructional → Instructional
Mathematics, Science & Technology → Biology - Study and teaching
Sound/audio
Sound
Colour
Colour
Holdings
16mm film; Access Print (Section 1)
16mm film; Limited Access Print (Section 2)
16mm film; Preservation Print (Section 5)