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Matter and energy in food webs

Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

Onderwerp en thema
Form 2
Biology
Balance of nature
Food chain and food web
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2022
Schepper/Auteur
Sal Khan
Trefwoord
Food webs

Similar Shapes

This video describes about similar shapes. It can help easily to find size  of a side and angles of similar figures. 

Onderwerp en thema
Form 2
Mathematics
Simularity
Similar figures
Type bron
Video
Taal
English
Uitgever
Fuseschool- Global Educations
Publicatiedatum
2020
Trefwoord
Similar Figures

Similar triangles

Outcomes

In this course you will learn about:

  1. Properties of similar triangles.
  2. Conditions for similarity.
  3. Proving triangles similar.
Onderwerp en thema
Form 2
Mathematics
Simularity
Similar figures
Type bron
Cursus
Taal
English
Publicatiedatum
2023

Trigonometric Functions of Special Angles

An online application to test your knowledge of evaluating trigonometric functions of special angles.

Onderwerp en thema
Form 2
Mathematics
Trigonometry
Trigonometric ratios of special angles
Type bron
Beoordelingen / Tests / Examenpapieren
Taal
English
Uitgever
GeoGebra
Publicatiedatum
No date
Schepper/Auteur
Angel Manuel Gonzalez Guillen
Trefwoord
Trigonometric Functions of Special Angles
Trigonometry

Worked example: analysing a generic food web

We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.

Onderwerp en thema
Form 2
Biology
Balance of nature
Food chain and food web
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2022
Schepper/Auteur
Sal Khan
Trefwoord
Food webs

Worked example: analysing an ocean food web

We can analyse the arrows in a food web to identify producers, primary consumers, secondary consumers, and decomposers.

Onderwerp en thema
Form 2
Biology
Balance of nature
Food chain and food web
Type bron
Video
Taal
English
Uitgever
Khan Academy
Publicatiedatum
2022
Schepper/Auteur
Sal Khan
Trefwoord
Food webs