1.I f the growth rate of a population decreases as the population size approache
ID: 70134 • Letter: 1
Question
1.If the growth rate of a population decreases as the population size approaches the carrying capacity, the population growth is described as
a.spiraling b. logistic c. logarithmic
2.If a human is able to incorporate 500 kcal of beef into their biomass, how many kcal of corn did the cow have to eat for this to occur?
a. 50,000kal b. 500,000kal c.50kal
3.Which of the following relationships has a negative impact on both species?
a.competition b.parasitism c. herbivory
6.Which of the following is not a density-dependent factor?
a earthquake b. toxic waste accumulation c. predation
8.Which of the following organisms has an equilibrial life history?
a. elepant b dandelion c.oyster
10.Which of the following is an example of a keystone species?
a. kelp b. sea star c. mussel
Explanation / Answer
1.If the growth rate of a population decreases as the population size approaches the carrying capacity, the population growth is described as
b. logistic
2. .If a human is able to incorporate 500 kcal of beef into their biomass, how many kcal of corn did the cow have to eat for this to occur?
a. 50,000kal
3.Relationships having a negative impact on both species
b. Parasitism
Competition between two or more organisms occrs when the organisms require same resource available in the environment. One organism survives and other is effected.
4. not a density-dependent factor
a earthquake
The factor which effects the size of the population irrespective of the number of individuals in the population i.e; density of the population. THe birth and death are effected when conditions of the weather , climate are severe.
5.Organisms having an equilibrial life history: Assemblage of all living organisms living together in an environment , reach sexual maturity at late stage in life cycle and produce offspring that are well cared.
a. elepant
6.An example of a keystone species Keystone species are those whose absence in the habitat influence other organisms negatively and lead to extinction of other organisms.
b. sea star : Sea star predates on mussels maintain their numbers in check in the habitat . Too many mussels will crowd out other species .
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