Use the following diagram of Joseph Connell's study of barnacle distribution in Scotland to answer the following two questions

Which of the following is the most logical conclusion about the distribution of the two species of barnacle, Chthamalus and Balanus?

#Question id: 10646

#Unit 10. Ecological Principles

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

#Unit 10. Ecological Principles

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

#Unit 10. Ecological Principles

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

#Unit 10. Ecological Principles

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

#Unit 10. Ecological Principles

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?

#Question id: 10651

#Unit 10. Ecological Principles

Which of the following value of A, B and C in above logistic growth of hypothetical population respectively?