Which of the following statements about the size and scale of ecosystems is correct?Ecosystems always maintain a fixed, predictable size.The scale of an ecosystem can range from extremely large to very small.A tropical rainforest is an example of a small-scale ecosystem.

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Which of the following statements about the size and scale of ecosystems is correct?

Ai, iii

Bii only

Ci only

DAll

Answer:

Ecosystems are incredibly diverse in their dimensions.
They can encompass vast areas like entire biomes or be as confined as a small experimental setup, demonstrating that there is no 'typical' size for an ecosystem.
This variability is a fundamental characteristic that allows for a wide range of ecological interactions and adaptations, from global carbon cycles to microscopic nutrient exchanges.

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Consider the role of Keystone species in an ecosystem. Which of the following statements is correct?

Keystone species are always the most abundant species in an ecosystem.
The destruction of keystone species can lead to the collapse of the entire ecosystem.
Keystone species play a critically important role in not maintaining the structure and function of an ecosystem.

Which of the following statements accurately describe heterotrophs?

Heterotrophs are also referred to as producers.
They are generally animals that feed on other organisms.
Consumers are also called phagotrophs, indicating their ability to ingest or swallow food.

Identify the incorrect statement(s) regarding ecological pyramids.

Ecological pyramids are graphical representations of ecological parameters like number of individuals, amount of biomass, and amount of energy.
The pyramid of energy can be both upright and inverted depending on the ecosystem.
Pyramids of number and biomass can be upright and inverted both
The pyramid of energy is always upright