Based on the information given in the video, how do you predict that a dramatic increase in the sea otter population would affect the kelp population?
a. The kelp population would increase because fewer large fish would be available to consume it.
b. The kelp population would increase because fewer sea urchins would be present to consume it.
c. The kelp population would decrease because more sunflower stars would be available to consume it.
d. The kelp population would decrease because more sea urchins would be present to consume it.
5. The video discussed the effects of the removal of sea otters on the system. What do you predict would be the most likely effect if you removed abalone instead?
a. There would be a decrease in sea otter populations.
b. There would be an increase in sea otter populations.
c. There would be an increase in octopus populations.
d. There would be a decrease in kelp.
Based on the information given in the video, the correct answers are:
a. The kelp population would increase because fewer large fish would be available to consume it.
The video explains that sea otters help control the population of large fish that eat the kelp. With a dramatic increase in the sea otter population, there would be fewer large fish available to consume the kelp, leading to an increase in the kelp population.
d. The kelp population would decrease because more sea urchins would be present to consume it.
The video also mentions that sea otters help control the population of sea urchins, which are a natural predator of the kelp. If sea otters were removed, there would be an increase in the sea urchin population, which would lead to a decrease in the kelp population.
For the second question:
d. There would be a decrease in kelp.
If abalone were removed from the system, there would be an increase in the population of sea otters, as mentioned in the video. This increase in sea otter population could lead to an increased consumption of kelp, resulting in a decrease in the overall kelp population.
Based on the information given in the video, the predictions would be as follows:
a. The kelp population would increase because fewer large fish would be available to consume it. This is not supported by the video. The video mentioned that sea otters prey on sea urchins, which are known to consume kelp. Therefore, an increase in sea otter population would result in fewer sea urchins consuming kelp, leading to an increase in the kelp population.
b. The kelp population would increase because fewer sea urchins would be present to consume it. This is the correct prediction. The video stated that sea otters prey on sea urchins, which helps control their population. With fewer sea urchins present, there would be less consumption of kelp, allowing it to thrive and increase in population.
c. The kelp population would decrease because more sunflower stars would be available to consume it. This prediction is not supported by the video. The video did not discuss the role of sunflower stars in relation to the kelp population.
d. The kelp population would decrease because more sea urchins would be present to consume it. This is not the expected result. As mentioned earlier, the video suggested that an increase in sea otter population would lead to a decrease in sea urchin population, resulting in less consumption of kelp and therefore an increase in kelp population.
For the second question:
a. There would be a decrease in sea otter populations. This is not the expected effect of removing abalone. The video did not mention any relationship between abalone and sea otter populations.
b. There would be an increase in sea otter populations. This is not the expected effect of removing abalone. The video did not indicate that removing abalone would lead to an increase in sea otter populations.
c. There would be an increase in octopus populations. This is not the expected effect of removing abalone. The video did not discuss any specific relationship between abalone and octopus populations.
d. There would be a decrease in kelp. This is the correct prediction. The video mentioned that abalone feed on kelp, and their removal would lead to less consumption of kelp, thereby allowing the kelp population to increase.
To predict how a dramatic increase in the sea otter population would affect the kelp population, we need to analyze the information given in the video.
In the video, it is mentioned that sea otters feed on sea urchins. Sea urchins, in turn, feed on kelp. Therefore, an increase in the sea otter population would likely result in fewer sea urchins, as they would be consumed by the otters. With fewer sea urchins present, there would be a decrease in the consumption of kelp by sea urchins.
From this information, we can conclude that the correct answer to the first question is:
Option b. The kelp population would increase because fewer sea urchins would be present to consume it.
Moving on to the second question, if we were to remove abalone from the system, it would not directly affect sea otter populations. The video did not provide any information about the relationship between abalone and sea otters. However, abalone are known to feed on kelp.
Since removing abalone would mean fewer kelp-consuming organisms in the system, it would result in an increase in the kelp population.
Therefore, the most likely effect of removing abalone would be:
Option d. There would be a decrease in kelp.