1. If a disease strikes the snake population in the food chain shown, what will be the initial effect on the populations of hawks and rabbits? O A. The populations of hawks and rabbits will decrease. O B. The populations of hawks and rabbits will increase. O C. The population of hawks will increase. The population of rabbits will decrease. D. The population of hawks will decrease. The population of rabbits will increase.

1. If a disease strikes the snake population in the food chain shown, what will be the initial effect on the populations of hawks and rabbits? O A. The populations of hawks and rabbits will decrease. O B. The populations of hawks and rabbits will increase. O C. The population of hawks will increase. The population of rabbits will decrease. D. The population of hawks will decrease. The population of rabbits will increase.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter19: Population And Community Ecology

Section: Chapter Questions

Problem 2ACQ: Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the...

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2. Hawks and owls living in the same area compete for the same type of mouse for food. Which situation would lead to the greatest problem in the food supply? a. An increase in the owl population b. An increase in the mouse population A decrease in the hawk population d. A decrease in the owl population C. Correct Answer Justify with Biological Reasoning
11. To increase the amount of energy available from food, which of the following strategies can people pursue? a. Eat earlier in the food chain. b. Eat farther along the food chain. Eat more meat products. Drink more water. e. Take more vitamins C. d. 12. According to the demographic transition model, what happens to population size as societies move from agricultural production to industrialization? a. It increases as death rates exceed birth rates. b. It decreases as death rates exceed birth rates. c. It increases as birth rates exceed death rates. d. It stabilizes with no changes in birth and death rates. e. It stabilizes as birth and death rates are balanced
What happened to the population of blue whales after hunting them was banned? A There was a substantial increase in whale numbers. В There was a slight increase in population. C There was a slight decrease in population numbers. D There was no effect.
Fly Population 4. The graph below represents the growth of a population of flies in a jar. Which letter(s) indicates the part of the graph where biotic potential is the only thing affecting the population? Choose all letters that apply. B Days 5. A population of mice has grown so rapidly that there are 2,400 individuals in an ecosystem that will support about 1,800 mice. The mouse population is most likely to A. undergo a decline in size, possibly to a stable level at or below 1,800 individuals B. have no effect on the population size of predators that feed on mice C. continue to have a birth rate that equals the death rate D. continue to increase 6. A population will always grow exponentially A. if it is limited only by density dependent factors. B. if there are no limiting factors C. if it shows logistical growth Number of Aes
3) Below is a simple food chain that represents the food chain in Yellowstone National Park in the Western Region of the United States. Use this image to help you answer the questions below a) Why are so few apex predators supported in this food chain compared to the number of producers or primary consumers? b) If someone accidently introduced a poison like DDT into this food chain what type of effects would you expect to see to happen to animals higher in the food chain over animals that are on the lower end of the food chain? c) Wolves although at the top of the food chain, are important in controlling this entire system. What type of species is that called and why are they so important?
10. What can destroy the amount of resources in an ecosystem? anvellot a a. Natural disasters. b. Tornados only. C. Hurricanes only. d. Tsunamis only. 11. If a natural disaster devastates an ecosystem, what will this do to the carrying capacity of the population of a species within that ecosystem? a. Increase it. b. Will not affect it, so it will stay the same. C. Always reduce it down to zero. d. Decrease it. 12. By which activity can humans change the carrying capacity of the population of a species? a. Studying the niches of particular species. b. Compiling a list of habitats in an ecosystem. C. Manipulating resources in its natural environment. d. Convincing it to reduce its carbon footprint. 13. If the population of a species is greater than its carrying capacity for a long time, what can that do to available resources in its ecosystem? a. Deplete them completely. b. Double the amount. c. Nothing, as there is no causal relation. d. Triple the amount.
Carnivoresthat feed on herbivores (or on detritivores) are referred to as:a.primary producers.b.primary consumers.c.secondary consumers.d.parasitoids.
6. Which change to a population would cause increased competition among its members? SC.7.L.17.3 A an increase in population size B a decrease in population size ©an increase in predation on the o population D an increase of disease in the population
1.) If a person weighs 50 kilograms how many kilograms of meat and vegetables could he have possible eaten? 2.) Between a meat-eater and plant-eater who is less expensive for the environment to support? 3.) Why is it that people who are vegetarian are stronger than meat eating people? 4.) If people will kill the snakes and shrew. What organisms in the Example will have population explosion?
31. Which action shows an increased understanding and concern by humans for nature? A. importing organisms that could become invasive to try stabilizing existing ecosystem B. getting rid of pollution control laws for industries that promote technology C. removing natural resources at a rate equal to the needs humans D. putting laws in place that regulate the number of animals hunted and killed each yea 32. Ecosystems will have a greater chance of being stable over a long period of time if they haw A. organisms imported by humans from other environments B. a sudden change in climate C. a diversity of organisms D. predators eliminated from the food chains 33. Which of the following is NOT a way that humans can protect biodiversity? A. Developing state parks B. Buying products that aren't sustainably sourced (palm oil, coffee, chocolate, etc...) C. Legally protecting endangerecrapecies to preserve biodiversity D. Regulating hunting and fishind 34. A wooded area has been divided by a…
What would happen to the fox population if most of the mice died from disease? the foxes would either die or eat a different prey. foxes would eat each other. the mice will rise again from death. the foxes would survive because they already ate a lot of mice before.
9. The diagram below is a food web If an insecticide is used to destroy most of the leaf beetles, what Large birde will most likely be the effect on the food web? The population of large birds will die out. а. Grass froge Leaf beetle will multiply rapidly, providing food for small birds b. Small birde Small birds will avoid poisoned insects by preying on frog с. Graashoppers Leaf beetes d. The grasshopper population will have more available food. Loaty vegetables