Question

7.

 Which pattern of survivorship is most likely for an organism such as the penguin, which produces only a single offspring at a time,

 provides a lot of parental care and has a relatively long lifespan?

  Most offspring survive for most of their potential life span and then die at approximately the same time.

  The probability of death due to natural causes is high throughout the life span.

  Survivorship is low early in life and then levels off.

  Young individuals have a high probability of dying, but older individuals have a relatively low probability of dying.

8.

 In exponential growth, as the size of the population increases, the number of new individuals getting added to the population each

 generation:

 gets smaller.

 stays about the same.

 gets larger.

 sometimes increases and sometimes decreases.

9.

 A population with a per capita growth rate (intrinsic growth rate) equal to 2.0 and unlimited resources...

 C A. is likely about to go locally extinct.

 B. is increasing rapidly in size.

 C. is experiencing exponential growth.

 D. is likely approaching it's carrying capacity.

 E. Both B and C are correct.

11.

 A population that experiences increasing competition for mates as the population grows larger represent which of the following?

 A. A population limited by density-dependent factors

B. A population limited by density-independent factors

C. A population experiencing logistic growth

D. Both A & C

 E. Both B &C

 

Answer 1

7. A. According to the question , the parent penguines are good care takers of young ones and produce single offspring and has relatively high life span which means they show a demographic curve as that of humans and that is why the correct answer is a. So in this penguine tend not to die when they are young or middle-aged but, instead, die when they become elderly.

8. C As we know in exponential growth, the growth is exponential for some period but is balanced or limited by resource availability and in this the growth rate of population's per capita stays the same beside of population size, which results in the faster growth of population and becomes larger .

9. E. When the resources are unlimited and per capita growth rate is 2 the population follows sexponential growth rate and increases rapidly in size .

11.c. the population experiences logistic growth .