The following five limiting factors would control the
population density of weeds;
<span>1.
</span>Supply and nutrients in the soil
<span>2.
</span>Presence/Absence of growth-restricting
substances such as pesticides
<span>3.
</span>The soil aeration and soil structure
<span>4.
</span>Moisture content in the soil.
<span>5.
</span>Biotic factors such as disease and pests
<span>6.
</span>Quality, intensity and duration of light
Answer: A
Explanation: All living organisims use energy
Answer:
There is no video but ecological relationship will be defined on a general note and it is not always beneficial to organisms.
Explanation:
In an ecosystem, organisms of the same or different species tend to interact with one another. This interaction is referred to as ECOLOGICAL RELATIONSHIP between the involved organisms. An ecological relationship can be of different types depending on the effect.
SYMBIOSIS is an ecological relationship between two organisms that interact together. SYMBIOSIS can either be mutualistic (both organisms benefit), parasitic (one organism loses and one gains), or commensalistic (one organism benefits and one neither benefits or loses). Another ecological relationship is PREDATION, where one organism called the PREDATOR feeds on part or all of another organism called PREY in order to obtain energy.
As stated above, some of the organisms involved in an ecological relationship benefits while others lose. Hence, it is not always a beneficial relationship to organisms.
It gets passed onto the baby
