1 To explain different types of relations between species in ecosystems.
2 To show interest in group tasks with Ppurpose of reaching common objectives.
3 To describe some interactions existing in communities, including human being as part of them.
What is your new knowledge?
What is the relationship between your new knowledge and your daily life?
Choose the right word according to its meaning.
Interaction in which an organism feeds from another living organism.
Group of living beings organized to fulfill a task. Social insects are recognized by forming these groups.
Set of species that inhabit a common environment and that are in continuous interaction.
Chemical substances segregated by some animals to communicate with the members of their species.
Set of biotic and abiotic factors that share a determined time and space.
Read the following statements and choose the right conclusion. Bear in mind that the way in which they are written should also be correct:
Some studies have shown that the insects in a creek control the amount of bacteria and algae from which they feed. On the other hand, other studies say that an infection of parasites is capable of reducing, almost completely, a population of foxes. This causes that pray populations of foxes increase (Moles, 2006).
The right conclussion is:
Say if the following statements are true (T) or false (F), or true but not well written (TN)
Mistletoe is a parasite plant that takes resources from trees such as the poplar.
The main three types of interaction in the communities are: competition, symbiosis, and harmony.
Examples of conditions are: water, temperature and humidity.
Competition between individuals from different species is called interspecific.
Commensalism was symbiosis in which these specie is benefit, and the other stays indifferent.
Gause’s Law of Competitive Exclusion is when two species compete for the same limited resource and one of them is eliminated by the strongest competitor.
Human beings do not stablish any interaction with living organisms such as plants and animals.
Defense mechanisms can be established when individuals of the same specie associate.
The main three types of interaction in the communities are: competition, symbiosis and harmony
These are examples of conditions: water, temperature and humidity.
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