Ecology

What factors define aquatic ecosystems?

• Salinity

• depth and concentrations of dissolved nutrients

• temperature and flow rate

• All of above

Nonliving factors of an environment?

• biotic

• bacteria

• abiotic

• plankton

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

The global system that contains most of the life on earth is ______

• atmosphere

• geosphere

• hydrosphere

• biosphere

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which variable do scientists use to divide the open ocean into two zones?

• salinity

• latitude

• depth

• oxygen

The three types of ecological pyramids are _________, ____________, and________.

Which type of organism receives energy from every other organisms in the trophic levels?

• Primary consumers

• Primary producers

• Decomposers

• Secondary consumers

Tags

NGSS.MS-LS2-3

Which of the following is a characteristic of tropical rain forests?

• Four seasons

• few organisms

• poor soil

• Fluctuation in temperature

A biome is defined by its _____.

• climate and vegetations

• soil type

• plant and animal communities

• latitude and longitude

Which pyramid can be inverted __________

• energy

• numbers

• biomass

• numbers and biomass

Events that take place in a biome are shown in the diagram below. What information is represented in the diagram?

• Respiration and photosynthesis are connected.

• Transpiration is related to the nitrogen level in bacteria.

• relationship between Predators and their prey

• Decomposers decompose organic materials and release nutrients that is utilized by other organisms

Tags

NGSS.MS-LS2-3