Friday, October 24, 2014

summary questions

1 using an example describe why a population could not increse for ever.

because if population increases it may reach its carrying capacity and if that happens the ecosystem will run out of resources. for example if wolfs eat up all the bunny's they will decrees because they will run out of food in this case.

2 what are 2 factors that determine whether a population increases or decreases. 

the first factor would be lack of resources for example if a species docent have enough food to live they population number will decrease, but if a species has too much food their population will increase. 

the other factor would be over population of predators if there are too many wolves that eat the food the food or pray population will decrease , but if there are too little predators then the prey population will increase.

3 give a reason why the human population of earth has continued to increase so much for the past hundred years.

because we are learning to eat every thing and we have a over populated amount of resources but in one moment that will balance out 

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