Question 28 Which event would decrease the severity of a die-off for a population that is already above its carrying capacity? O a decrease in the population's carrying capacity O a decrease in the number of reproductive females O an increase in the abundance of a predator O an environmental disturbance that decreases resource abundance ◄ Previous Next

Question 3 Which of the following statements is consistent with the abundance-center hypothesis? (Choose all correct answers). (Lech Species decrease in abundance towards the range periphery, as conditions become less optimal for growth and reproduction. Towards the range periphery, birth rates far exceed death rates, compared to areas at the range center. Areas at the center of the species' range have higher abundance due to high immigration rates of individuals from the range periphery Areas at the center of the range are more likely to be source populations, whereas areas at the range edge are more likely to represent sink populations. Within a species distribution, individuals are most abundant towards the range center, where conditions for growth and reproduction are optimal.

If the deer population is decreasing what would you expect to happen to the wolf population? Why?

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question will save this response. Question 8 What does the Lotka-Volterra model simulate? O mutualistic relationships O predator and prey populations O Leibig's law of the minimum O parasitism risk A Moving to another question will save this response. f2 esc f7 2$ % & 2 # M

QUESTION 12 Large 6 lane highways act as a dispersal filters for land mammals, which observation would be correct about this type of dispersal barrier? O the highways promote the movement of deer across the because of the deer crossing signs O the highways limit dispersal to only the most mobile species O the highways completely cut off all mammal dispersal O a large percentage of mammals took advantage of low car densities during the Covid-19 lockdown to cross the highway. QUESTION 13 Click Save and Submit to save and submit. Click Save All Answers to save all answers.

QUESTION 6 A population's carrying capacity (K) is the size at which the population O is the largest it can ever be O experiences its maximum rate of growth O achieves a random distribution experiences negative density-dependent growth

Question 4 How would fire suppression in western states impact habitat diversity? O habitat diversity would increase because fire destruction is being limited O habitat diversity would increase because fire kills resistant species O habitat diversity would decrease because less fire disturbance means higher levels of colonizer species O habitat diversity would decrease because the forest would all be at the same level of succession A Moving to another question will save this response. ts fe 12 米 esc 23 24 & 4. 8 Q W E tab F G H caps lock A B # M と不

A population of 1,492 finches is introduced to a rainforest. Over the next year, the finches showa death rate of 0.395 while the population drops to 1,134. What's the birth rate for this population? Is this proving to be a suitable habitat? (Two answers) O Yes, this is a suitable habitat. The birth rate is higher than the death rate. D No, this is not a suitable habitat. The birth rate is much lower than the death rate. 589 -358 a 0.155 O 0.845 Which of the following is true of a population approaching its carrying capacity? O The population's rate of increase approaches zero. ロロロロロ □

The diagrams below show very simplified species relationships for certain areas of African savanna. Recall what the direction of arrows means for each type of diagram. Then use these simplified diagrams to answer the next 3 questions. (Note: Real-world savannas support more species with more complex relationships.) Elephants Trees Trees Savanna Food Web Lions Zebra Shrubs Competition Among Savanna Plants Shrubs Cheetahs Gazelle Grasses Grasses Q5.6. If you removed all the Lions from a large area of savanna, which of the following is a DIRECT effect that could be explained by the diagrams?