ANATOMY

GENERAL ANATOMY

INTRODUCTION TO GENERAL ANATOMY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
As species disappear from a prairie ecosystem, their disappearance results in decreased-
A
sustainability of the prairie ecosystem.
B
numbers of species in nearby ecosystems
C
likelihood of prairie wildfires breaking out.
D
numbers of offspring in remaining species.
Explanation: 

Detailed explanation-1: -As species disappear from a prairie ecosystem, their disappearance results in decreased-likelihood of prairie wildfires breaking out.

Detailed explanation-2: -This means that if the species were to disappear from the ecosystem, no other species would be able to fill its ecological niche. The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.

Detailed explanation-3: -The sustainability of managed systems can be increased by maintaining interactive controls so that they form negative feedbacks within ecosystems and by using laws and regulations to create negative feedbacks between ecosystems and human activities, such as between ocean ecosystems and marine fisheries.

Detailed explanation-4: -The species that make up an ecosystem are connected in complex ‘food webs’ of eater and eaten. When one species disappears, its predators can no longer eat it and its prey are no longer eaten by it. Changes in these populations affect others. Such impact ‘cascades’ can be unpredictable and sometimes catastrophic.

Detailed explanation-5: -Greater biodiversity in ecosystems, species, and individuals leads to greater stability. For example, species with high genetic diversity and many populations that are adapted to a wide variety of conditions are more likely to be able to weather disturbances, disease, and climate change.

There is 1 question to complete.