Match the following.

Column I	Column II	Column III
A. G Protein–Coupled Receptors That Activate PDE	i. cAMP	a. Increase in conversion of glycogen to glucose
B. G Protein–Coupled Receptors That Activate Adenylyl Cyclase	ii. cGMP	b. Hyperpolarization or depolarization of photoreceptor membrane
C. G Protein–Coupled Receptors That inhibit Adenylyl Cyclase	iii. DAG	c. activates genes necessary for cell division
D. G Protein–Coupled Receptors That Trigger Elevations in Cytosolic and Mitochondrial Calcium		d. increase in K+ permeability hyperpolarizes the membrane

Which one of the following is correct?

TLS Online TPP Program

#Question id: 12610

#Unit 10. Ecological Principles

If the Sun were to suddenly stop providing energy to Earth, most ecosystems would vanish. Which of the following ecosystems would likely survive the longest after this hypothetical disaster?

TLS Online TPP Program

#Question id: 12611

#Unit 10. Ecological Principles

Researchers in the Netherlands studied the effects of parental caregiving in European kestrels over 5 years. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six),  and  enlarged  broods  (seven  or  eight).  They then measured the percentage of male and female parent birds that survived the following winter. (Both males and females provide care for chicks.) Brood Size Manipulations in the Kestrel: Effects on Offspring and Parent Survival

 

Which of the following is a conclusion that can be drawn from this graph?

TLS Online TPP Program

#Question id: 12612

#Unit 10. Ecological Principles

Which of the following pairs of reproductive strategies is consistent with energetic trade-off and reproductive success? 

TLS Online TPP Program

#Question id: 12613

#Unit 10. Ecological Principles

A population of ground squirrels has an annual per capita birth rate of 0.06 and an annual per capita death rate of 0.02. Estimate the number of individuals added to (or lost from)  population of 1,000 individuals in one year. 

TLS Online TPP Program

#Question id: 12614

#Unit 10. Ecological Principles

A small population of white-footed mice has the same intrinsic rate of increase (r) as a large population. If everything else is equal,

TLS Online TPP Program

#Question id: 12615

#Unit 10. Ecological Principles

Imagine that you are managing a large ranch. You know from historical accounts that wild sheep used to live there, but they have been extirpated. You decide to reintroduce them. After doing some research to determine what might be an appropriately sized founding population, you do so. You then watch the population increase for several gen- erations, and graph the number of individuals (vertical axis) against the number of generations (horizontal axis). The graph will appear as