Which statement about the two communities pictured above is true? OCommunity 2 has lower species abundance but the same species richness Community 2 has the same species richness and higher species abundance O Community 1 has higher species abundance and lower species richness OCommunity 1 has higher species richness and higher species abundance

Species with a capacity for a high rate of population growth are called o-selected species p-selected species K-selected species O j-selected species r-selected species

Select ALL of the conclusions that can be drawn from this graph. LAA Species 1 Seed size Number of seeds consumed Species: Select all that apply Species 2 is a better competitor that species 2. Species 1 and species 2 compete for seeds of an intermediate size. Species 1 has a stronger beak than species 2. Species 2 has a broader niche range than species 1. Species 1 typically eats smaller seeds that species 2.

The green world hypothesis was tested by Robert Paine and he found that when you removed the top predator, star fish, from the intertidal zone Group of answer choices:    • None of the answers are correct • species diversity stayed the same • species diversity increased • species diversity decreased

Q2.3 1 Point Calculate the Shannon-Weiner index and Simpson's index of diversity for each island. Island A Island B Island C Save Answer *Unsaved Changes

Two islands exist in the eastern Pacific. The animal and plant life on both islands were wiped out by a freak storm at the same time. Island "A" is 100 miles off the coast of Peru; whereas island "B" is only 10 miles off Peru's coast. Island "A" is much smaller than island "B" (20 square miles as opposed to 75 square miles). Which island has a higher species richness equilibrium  ? Explain why using the Theory of Island Biogeography.

The table below shows the number of individuals from 4 species of frogs sampled in a pond. What is the Shannon Index this community? Round  your answer to the second decimal.   species A species B species C species D 89 47 75 23

The green line is the isocline for species 1. The black line is the isocline for species 2. Population size Ni is on the x- axis. Population size N2 is on the y-axis. Why do both species coexist in this scenario? K/a12 (A) species 2 reaches its carrying capacity before it reaches the number of individuals it would take to drive species 1 extinct. At every stable size for species 2, species 1 is below its carrying capacity and therefore still increasing. K2 (B) the carrying capacity for both species is reached before they reach the number of individuals required to drive the other species extinct. At low population sizes, each species' growth rate is positive. KI (C) both species' carrying capacities are higher than the population size required to drive the other species extinct. Population size of Species 1 Green is the isocline for species 1 Black is the isocline for species 2 Population size of Species 2

A gypsy moth population has overtaken a grove of oak trees. The gypsy moths eat the trees, causing the trees to die. What type of density-dependent factor would the gypsy moths be considered?          predation         disease and parasites         competition         physiological change

Which of the following would be considered a factor affecting species distribution? Habitat selection Oxygen availability Number of births in a year Death rates due to illness Temperature of the environment