3. The birds shown below live on a single island. These four bird species are closely related, and all of them share a common ancestor with a single species. What
environmental factor is most likely to have caused this diversity of species?
A. When the ancestral species arrived at the island, there was only one food source, so the
ancestral species left the island immediately.
B. When the ancestral species arrived at the island, there was only one food source available and
no need for different beak shapes.
C. When the ancestral species arrived at the island, there were multiple food sources available,
and different beak shapes evolved for the most efficient eating.
D. When the ancestral species arrived at the island, there were multiple food sources available,
and the different beak shapes were equally efficient for eating different food sources,

Where does all the water go? according to the environmental protection agency (epa), in a typical wetland environment, 39% of the water is outflow; 46% is seepage; 7% evaporates; and 8% remains as water volume in the ecosystem (reference: united states environmental protection agency case studies report 832-r-93-005). chloride compounds as residuals from residential areas are a problem for wetlands. suppose that in a particular wetland environment the following concentrations (mg/l) of chloride compounds were found: outflow, 60.4; seepage, 73.7; remaining due to evaporation, 26.4; in the water volume, 46.8. (a) compute the weighted average of chlorine compound concentration (mg/l) for this ecological system. (round your answer to one decimal place.) mg/l (b) suppose the epa has established an average chlorine compound concentration target of no more than 58 mg/l. does this wetlands system meet the target standard for chlorine compound concentration? yes. the average chlorine compound concentration (mg/l) is too high. yes. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is too high.

Which of the following typically characterizes a tropical rainforests

How long does it take a skateboarder going 6.0 m/s to come to a complete stop if she slows down at a rate of 2.0 m/s^2