Responses
cold desert.
cold desert.
coral reef.
coral reef.
tundra.
tundra.
taiga.
The Florissant Fossil Beds in Colorado are home to several massive redwood stumps that were subjected to a special kind of fossilization millions of years ago. What service could these fossilized stumps most likely provide?(1 point)
Responses
tourism
tourism
shelter
shelter
soil creation
soil creation
lumber
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?(1 point)
Responses
apex predator
apex predator
keystone species
keystone species
producer
producer
decomposer
Your friend John is having trouble with his compost bin. The material in his compost pile doesn’t seem to be decomposing well. You take a sample of the pile and check for the presence of microorganisms under the microscope. You see that there are indeed microorganisms; however, they don’t appear to be growing very fast. John says that he regularly mixes his compost pile to expose it to oxygen but has noticed the pile feels cold. What is the most likely explanation for this problem?(1 point)
Responses
The compost pile contained incorrect amounts of "greens" and "browns".
The compost pile contained incorrect amounts of "greens" and "browns".
The compost pile was placed in the sunshine.
The compost pile was placed in the sunshine.
The compost pile contained aerobic bacteria.
The compost pile contained aerobic bacteria.
The compost pile was sufficiently moist.
1 answer
Here are the correct answers based on the information provided:
The most biodiverse ecosystem in the world is likely a coral reef.
The Florissant Fossil Beds in Colorado could most likely provide tourism as a service.
The term that best describes the otter in the Aleutian Islands ecosystem is keystone species.
The most likely explanation for John's compost pile problem is that the compost pile contained incorrect amounts of "greens" and "browns."
