Ecology and Biodiversity

Endevor requires a minimum of 2 environment stages to function properly - typically a development stage and a production stage. While organizations may implement more stages (QA, INT, UAT, etc.), the minimum configuration is 2. Option B correctly states this minimum requirement. Options A and C suggest higher minimums, and D (1 stage) would not provide adequate separation.

Bioreserve is a unique kind of protected area that is used for conservation of genetic resources, species, and ecosystems, scientific research and monitoring in addition to promoting sustainable development in communities of the surrounding region. The management system of a biosphere reserve requires being open and adaptable to changes in local circumstances..

This is the correct order.

The ecological footprint is a measure of human demand on the Earth's ecosystems. It is a standardized measure of demand for natural capital that may be contrasted with the planet's ecological capacity to regenerate

It is the only wrong statement. The nature of community is determined by only a few species called dominants and each community develops as a result of a directional change called succession. 

Vertical distribution of different species occupying different levels is called stratification. For example, trees occupy the top vertical strata or layer of a forest, shrubs occupy the second and herbs and grasses occupy the bottom layers.

The entire sequence of communities that successively change in a given area is called sere.

The habitat plus the niche is called the ecotope, which is defined as the full range of environmental and biological variables affecting an entire species.

Faster moving water, for example streams and rivers, are Lotic.

Abiotic components are the non-living physical and chemical parts of an ecosystem. Water is abiotic. Fish and frogs are animals (biotic), and bacteria are living microorganisms (also biotic). Only water qualifies as an abiotic component in this list.

An ecosystem consists of biotic and abiotic components interacting in a defined space. Air is just an abiotic component or atmosphere, not a complete ecosystem with interacting organisms and environment.

The biological hierarchy of organization starts at the molecular level (atoms and molecules), then progresses to cellular, tissue, organ, organism, population, community, ecosystem, and biome levels. Molecular is the most fundamental level.

Natural ecosystems form without human intervention. Rivers are naturally occurring systems with flowing water, plants, animals, and microorganisms interacting. Crop fields, aquariums, and parks are all human-made or maintained.

An ecosystem consists of living organisms and their physical environment functioning together. Plants, soil, and sunlight are all components of ecosystems. A biome is a large geographic area with similar climate and ecosystems, but not a component itself.

Biological organization from lowest to highest is: molecular, cellular, tissue, organ, organism, population, community, ecosystem, biome. Higher levels include biome, ecosystem, and community. Molecular level is the lowest, not higher.