How do inherited adaptations impact on diversity?

10C: Interdependencies between species 

Outcome:
By the end of the lesson you will be familiar with interactions within an ecosystem; between different organisms and organisms and their environment. 

Engage

Explain:

Learning Activities:

Extension

Extension

1. Identify the following statements as true of false and state your reasoning.

a) In a parasite-host relationship the host is always killed by the parasite.

b) A predator-prey relationship is an example of mutualise.

c) Endoparasites live external to their host.

d) In commensalist relationships one organism benefits without harming or benefiting the other.

e) A herbivore-plant relationship is identical to a predator-prey relationship.

f) A facultative parasite does not require a host to complete its life cycle.

g) Holoparasites cannot photosynthesise.

h) Animal parasites can be classed as holoparasites and hemiparasites.

i) Competition can only occur between different species.

2. Find examples of the following, that have not already been discussed this lesson:

a) A fungus that is a parasite

b) An obligate parasite in cats or dogs

c) A herbivore-plant relationship in a forest ecosystem

d) A predator-prey relationship in a coral reef

e) Interspecific competition in an Australian environment

f) Intraspecific competition in a savannah environment.