Ecosystems have trouble adjusting to short-term changes.

select the best answer from the choices provided

False

Ecosystems does not have trouble adjusting to short term changes. The ecosystem consists of a community of organisms interacting with the plants, surrounding animals and the habitat around them. They get the nutrient from the nutrient cycle and receive energy from the energy flow. The biotic components of an ecosystem develops various adaptations to adjust the changing environment. The organisms can easily withstand the short term changes and prepare themselves for the long term changes through adaptations and adjustments.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.