Q1. Which of the following compete for space on intertidal rocks? Check all that

Question

Q1. Which of the following compete for space on intertidal rocks?

Check all that apply:

AlgaeBarnaclesWhelkStarfish

Q2. Which species eats Acorn Barnacles?

MusselStarfishWhelkChiton

Q3. Which of these species is the most competitively dominant?

Black PineGoose-neck BarnacleNori SeaweedAcorn Barnacle

Q4. What dramatically changes when Starfish are removed from the simulated system?

Acorn and Goose Neck Barnacle populations increase in size.The Mussel population increases in size.The Coral Weed population increases in size.The system remains largely unchanged.

Q5. Which of the following is NOT an essential characteristic of a keystone species?

A relatively small population size compared to other species in the community.Removal of the species leads to a large change in the community.Direct interaction (through competition or predation) with almost every other species in the community.A high impact on the community relative to its population size.

The diagrams below show very simplified species relationships for certain areas of African savanna. Use these simplified diagrams to answer the questions below. (Real-world savannas support more species with more complex relationships.)

Q6. If you fenced a plot of land in the savanna so that animals were completely excluded, over time, which type of plant would dominate the plot, according to the diagrams?

GrassesShrubsTreesNone will dominate.

Q7. If you removed all the Gazelles from a large area of savanna, which of the following changes is most likely, according to the diagrams?

There would be more Cheetahs.There would be more Grasses.There would be fewer Shrubs.There would be fewer Elephants.

Q8. If you removed all the Cheetahs from a large area of savanna, which of the following changes is most likely, according to the diagrams?

There would be fewer Gazelle.There would be fewer Shrubs.There would be fewer Lions.There would be fewer Grasses.

Q9. If you removed all the Elephants from a large area of savanna, which of the following changes is most likely, according to the diagrams?

There would be fewer Shrubs.There would be fewer Grasses.There would be more Gazelle.There would be more Cheetahs.

Q10. Which species below is the best candidate for a keystone species?

ElephantsCheetahsLionsZebras

Q1. Which of the following compete for space on intertidal rocks? Check all that apply: AlgaeBarnaclesWhelkStarfish Q2. Which species eats Acorn Barnacles? MusselStarfishWhelkChiton Q3. Which of these species is the most competitively dominant? Black PineGoose-neck BarnacleNori SeaweedAcorn Barnacle Q4. What dramatically changes when Starfish are removed from the simulated system? Acorn and Goose Neck Barnacle populations increase in size.The Mussel population increases in size.The Coral Weed population increases in size.The system remains largely unchanged. Q5. Which of the following is NOT an essential characteristic of a keystone species? A relatively small population size compared to other species in the community.Removal of the species leads to a large change in the community.Direct interaction (through competition or predation) with almost every other species in the community.A high impact on the community relative to its population size. The diagrams below show very simplified species relationships for certain areas of African savanna. Use these simplified diagrams to answer the questions below. (Real-world savannas support more species with more complex relationships.) Q6. If you fenced a plot of land in the savanna so that animals were completely excluded, over time, which type of plant would dominate the plot, according to the diagrams? GrassesShrubsTreesNone will dominate. Q7. If you removed all the Gazelles from a large area of savanna, which of the following changes is most likely, according to the diagrams? There would be more Cheetahs.There would be more Grasses.There would be fewer Shrubs.There would be fewer Elephants. Q8. If you removed all the Cheetahs from a large area of savanna, which of the following changes is most likely, according to the diagrams? There would be fewer Gazelle.There would be fewer Shrubs.There would be fewer Lions.There would be fewer Grasses. Q9. If you removed all the Elephants from a large area of savanna, which of the following changes is most likely, according to the diagrams? There would be fewer Shrubs.There would be fewer Grasses.There would be more Gazelle.There would be more Cheetahs. Q10. Which species below is the best candidate for a keystone species? ElephantsCheetahsLionsZebras

Explanation / Answer

According to chegg rules we can answer only one question. Since it is a MCQ, i will answer the first 4.

1. Algae and Barnacles compete for intertidal space. Algae need sunlight for photosynthesis while barnacles need a substrate to attach and still need contact with water for food.

2. Whelk.

3. Goose neck barnacle is the most dominant of all.

4. Mussel population increases in size. Starfish eat mussels and so when the starfish are removed, the mussels increase in number.

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