Question

use the information following scenarios from the table above to answer the questions. in scenario 3, what would happen to the black wasp population if all the aphids died out? what would happen to the aphids population if all the black wasps died out? in scenario 5, what would happen to the alpheid shrimp population if all the goby fish died out? what would happen to the goby fish population if all the alpheid shrimp died out?

Explanation:

To answer these questions, we need to analyze the relationships between the organisms (likely predator - prey or symbiotic relationships, though the table isn't fully visible, we can infer based on typical ecological interactions):

Scenario 3: Black wasp and aphids

Step 1: Determine the relationship

Assume black wasps are predators of aphids (a common ecological relationship: wasps often parasitize or prey on aphids). If aphids (the prey) die out, the black wasps (the predators) lose their food source.

Step 2: Predict the population change

Without a food source, the black wasp population will decline. There will be increased competition for the remaining resources (if any alternative food is available, but if aphids were a primary food source) and many wasps will not be able to survive and reproduce, leading to a decrease in their population.

Scenario (about aphids and black wasps reversed - if black wasps die out)

Step 1: Determine the relationship

If black wasps are predators of aphids, and the black wasps die out, the aphids lose their main predator.

Step 2: Predict the population change

With the removal of the predator, the aphid population will increase (assuming there are enough resources like plants for them to feed on). There will be less mortality due to predation, so their numbers will grow.

Scenario 5: Alpheid shrimp and goby fish

Step 1: Determine the relationship

Goby fish and alpheid shrimp often have a symbiotic relationship (mutualism). The shrimp builds and maintains a burrow, and the goby acts as a lookout. If the goby fish die out:

Step 2: Predict the alpheid shrimp population change

The alpheid shrimp will be more vulnerable to predators as they lose their lookout. This increased predation risk will likely lead to a decline in the alpheid shrimp population. They may also have more difficulty detecting threats while foraging or maintaining their burrows, which can impact their survival and reproduction.

Scenario (goby fish and alpheid shrimp reversed - if alpheid shrimp die out)

Step 1: Determine the relationship

If the alpheid shrimp die out, the goby fish lose their burrow (their shelter and a key part of their symbiotic relationship).

Step 2: Predict the goby fish population change

Without the burrow for shelter, the goby fish will be more exposed to predators and environmental hazards. This will lead to an increase in their mortality rate, and as a result, the goby fish population will decline.

Answer:

s:

• If all aphids died out, the black wasp population would decline (due to loss of food source).
• If all black wasps died out, the aphid population would increase (due to loss of predation pressure).
• If all goby fish died out, the alpheid shrimp population would decline (due to increased predation risk without the goby's lookout behavior).
• If all alpheid shrimp died out, the goby fish population would decline (due to loss of shelter/burrow and symbiotic support).