arch the web 1114 HW 6$18.docm- Peobected Vew-Saved to this PC w Design Layout R

Question

arch the web 1114 HW 6$18.docm- Peobected Vew-Saved to this PC w Design Layout Refenences Mallings Rrview ew Heip Tel me whart you want to do 6) During the sammer of 1998 a drought decrease of the level of Theta Pond by evaporation and a drastic rise in salinity (salt concentration-Soon 72% of the goldfish died because they are not adapted to live in a heh saline concentration. This would be described by a population biologist as a _decline in the goldfish population a) density-dependent b) density-independent c) density-neutral d) 1-curve e) random Have you visited an SI session? Homework #6 PRINT NAME legibly Sigote (7] During the year 1 347, bubonic plague swept Europe, resulting in the death of 30% 50% of the population (in some cities even more). It was called the "Black Death. Nobility survived at higher rates than the "common" people. Which of the following would be the least plausible hypothesis for this? a) The nobility ate more food of higher nutritional value. b) The poo r suffered from greater stress resulting from toiling for the nobles c) The noblity could move out of the cities to their country estates and thus live at lower population densities d) The poor bathed less often e) The nobles were able to develop specific immunity to the disease because they were to search 8 2 5 6 8 9

Explanation / Answer

Ans 6 ;d) J curve

The population of the goldfish declined in the theta pond due to the increase in salt concentration , and not due to invasion of any predator species. The population decreased exponentially as the water was rapidly lost from the pond , leading to an increase in the mortality rate. This leads to J shaped curve in the graph plotted against time.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.