Semelparous species are those that produce all of their offspring in a single reproductive event. The survivorship curve of a population of a semelparous species would most likely resemble which of the following? 

#Question id: 10645

#Section 2: Evolution

The logistic equation above is used to describe the rate of change of a population, N, with time, t, where r is the intrinsic rate of increase and K is the carrying capacity. dn/dt is isoclines when 

#Question id: 10646

#Section 2: Evolution

Four sampling unit of Area occupy by species having following number is 00, 20, 10, 20. What is abundance of that species?

#Question id: 10647

#Section 2: Evolution

Use the graph to answer the following question

In the figure, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale?

#Question id: 10648

#Section 2: Evolution

Which statements about K are correct?

I) K varies among populations.

II) K varies in space.

III) K varies in time.

IV) K is constant for any given species.

#Question id: 10649

#Section 2: Evolution

According to the logistic growth equation

A) the number of individuals added per unit time is greatest when N is one fourth of K

B) the per capita growth rate (r) increases as N approaches K

C) population growth is zero when N equals K

D) the population grows exponentially when N approaches K

#Question id: 10650

#Section 2: Evolution

Following some characteristic feature of K selected species

A. semelparity 

B. Mate choice

C. Density independent mortality

D. large size of offspring

What is the above combination is correct?