The basic components (depedent and indepedent variables) are the plants and altitude while the confounding variable is the 20 story building. Confounding variables affect the experiement variable and are mainly outside of the researcher’s control in the experiment. Ray cannot change the building but this variable can affect the depedent and indepedent variables and cause distorted or spurious results.
Answer:
The proper matching is given below.
Explanation:
Predation Typical plant defence include(thorns,sticky substances) and chemicals(toxin,bad tastingchemicals) adaptation.
Competition When individuals fight for a common resource,the weaker one experience loss or affected adversely.
Disease pathogens can be transmitted to host by direct contact between hosts o through soil,water,air or any other surface.
Symbiosis This interaction is of three types : mutalism,Commensalism and parasitism.
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Answer: Xiao can use these structures to create a similarity matrix that enables to differentiate between synapomorphies and homoplasies .
Explanation: A synapomorphy is a trait that has been inherited from the same ancestor, this trait enables to establish a relation of homology between two or more species; while a homoplasy is an analog structure that doesn't have homology.
