If all individuals in the last remaining population of a particular frog species were all highly elated, which type of diversity would be of greatest concern when planning to prevent the species from going extinct?

#Question id: 11511

#Section 1: Ecology

A metapopulation is

#Question id: 8687

#Section 2: Evolution

Your professor wants you to construct a phylogenetic tree of orchids. She gives you tissue from seven orchid species and one lily. What is the most likely reason she gave you the lily?

#Question id: 11249

#Section 4: Behavioural Ecology

Choose the density-dependent factor that will slow population growth as population size increases.

#Question id: 9155

#Section 2: Evolution

The success of plants extending their range northward following glacial retreat is primarily determined by ________.

#Question id: 10636

#Section 2: Evolution

The demographic transition model depicts demographic changes from high- to low-level births and deaths in five stages

Stage 1 is characterized by total population numbers are low and the high birth rate is balanced by the high death rate.

B) Stage 2 is characterized by high population growth rate is results of high birth rate however, decline death rate

C) Stage 4 is characterized by decline in the proportion of the population in the reproductive age group and these changes stabilizes population size

D) Stage 3 is characterized by falling birth rates and death rates and population growth rate is zero due to the less numbers of people in the reproductive age group