Which one of the following animals is most likely to be a keystone species, based on the food web provided
As an AI language model, I do not have access to the food web provided. Please provide me with the necessary information so that I can assist you better.
Which one of the following animals is most likely to be a keystone species, based on the food web provided
Frog
Grasshopper
Mouse
Deer
As an AI language model, I do not have access to the specific food web you are referring to. However, in general, a keystone species is one whose role in the ecosystem is disproportionately large compared to its abundance. It often helps to regulate the other populations in the ecosystem, either through predation or other interactions. Therefore, without knowing the specific food web, it is difficult to accurately determine which animal is the most likely keystone species.
Question
Which biome best supports animals that feed mostly by grazing on grasses and small shrubs?
Answer Choices
* savanna
* tropics
* mixed forests
* polar desert
The biome that best supports animals that feed mostly by grazing on grasses and small shrubs is the savanna.
Question
Which describes a primary role of the pioneer species in an ecosystem?
Answer Choices
* prevent fertile soil from washing away
* protect other species from danger
* break down rock into soil
* provide food for small animals
The primary role of pioneer species in an ecosystem is to break down rock into soil. They are the first organisms to colonize an area after a disturbance, such as a volcanic eruption or a landslide, and they play a critical role in creating soil from bare rock. Over time, as the pioneer species die and decompose, their organic matter enriches the soil and makes it more fertile. This then allows other plants and animals to move in and establish themselves in the ecosystem.
Question
What happens after coral is bleached?
Answer Choices
* The coral is susceptible to starvation.
* The coral releases algae into the ocean.
* The coral dies immediately.
* The coral produces peroxides.
After coral is bleached, it becomes susceptible to starvation. Coral bleaching occurs when the symbiotic relationship between the coral polyps and the zooxanthellae (algae) is disrupted due to environmental stressors such as warmer water temperatures or pollution. As a result, the coral expels the zooxanthellae, causing the coral to lose its color and turn white. Since the zooxanthellae play an important role in providing the coral with nutrients through photosynthesis, the coral becomes more vulnerable to starvation and disease once they are expelled. In severe cases, the coral may die if the stressors are not removed and the zooxanthellae are not able to recolonize the coral's tissue.
Question
Marine biologist Dr. James Estes researched sea otters and their habitats in the Aleutian Islands of the North Pacific Ocean. Sea otters feed on animals such as crabs and urchins. Islands with sea otters contained a lot of kelp, a seaweed that is an important food source for fish and other sea animals. However, Islands without otters had large populations of urchins but no kelp since sea urchins feed on this seaweed. Since sea otters are able to control the population of urchins, this allows for kelp to freely grow in those areas. Given this information, what term best describes the otter in the Aleutian Islands ecosystem?
Answer Choices
* decomposer
* keystone species
* apex predator
* producer