26. How do we decide if there is a real (i.e. not due to chance) difference betw

Question

26. How do we decide if there is a real (i.e. not due to chance) difference between responses or not?

27. Why are some invasive species more successful (i.e. have greater fitness) in their introduced environment compared to their native environment?

28. What are some trade-offs that organisms face when they interact with other organisms?

29. How might interacting with members of your own species be the same or different than interacting with members of a different species?

30. What roles do reproductive strategies play in population growth and maintenance?

*(all in ecological perspective)

Explanation / Answer

26)in response..like plant species do various adaptation such as:sun plant have CAM.pathway where stomat open at night..to reduce water loss

Camouflage: certain butterflies are brightly colored above and have dull colours on the lower surface. These butterflies settle on dead or dried leaves by folding their wings and this way deceive ther predator

27)rapid reproduction

Low competition

Ability to live off a wide range of food type

High dispersal rate..

28) trade some time external such as envitonmental factor..e.g presence of limited resource

And sometime internal such as factor between survival and reproduction

29) in coperative intraspecific interaction include mating, parental care, family formation , leadership behaviour some time competition also rake place that is very severe due to same requiremnt of food

Interaction between different species lead to interspecific competition ,predation p,ammensalism,parasitism..and postive interaction also like mutualism

30)population have characteristic patterns of growth with time..a) S shaped growth..when resources are limited shown by yeast

b)J shaped growth curve:when resources are unlimited e.g algal bloom

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