What is thought to be the correct sequence of these events, from earliest to most recent, in the evolution of life on Earth?

1.  origin of mitochondria

2.  origin of multicellular eukaryotes

3.  origin of chloroplasts

4.  origin of cyanobacteria

5.  origin of fungal-plant symbioses

#Question id: 10620

#Unit 10. Ecological Principles

Above graph represent population size (N) versus time (t) for logistic growth features S-shaped curve sigmoid growth having following feature, which of the following is correct statement?

#Question id: 10621

#Unit 10. Ecological Principles

One life history trait that is not characteristic of very small sized organisms is

#Question id: 10622

#Unit 10. Ecological Principles

For a species having logistic growth, if K = 4000 and r = 0.25, the maximum growth rate will be

#Question id: 10623

#Unit 10. Ecological Principles

What is the population growth per unit of time when r = 0.50, N = 100 and K = 1000. What is value of per capita growth rate when population growing at maximum rate?

#Question id: 10624

#Unit 10. Ecological Principles

Limited resources cause tradeoff between investment in reproduction and survival. There is two Animal species with similar size present at same habitat but different their life history as a following. 

A Species   -   Later age at first reproduction

B Species –    Large clutch size and low survival of offspring and adult

There is above species should be

#Question id: 10625

#Unit 10. Ecological Principles