The movement of water across a membrane in response to a gra

The movement of water across a membrane in response to a gradient of solute concentration is called: salinity. osmosis. solubility. diffusion, pressure. Those organisms that thrive in an environment free of oxygen are called phytoplankton. zooplankton. nekton. anaerobes, aerobic. When two different species require the same resources we may observe intraspecific competition. resource partitioning. interspecific competition. predation. symbiosis parasitism. _____ is when one organism successfully outcompetes another organism and excludes it from a particular area or niche. Predation Resource partitioning Parasitism Competitive exclusion Commensalism The niche of the species is best described as: the biological relationships of the species in the ecosystem. the behavior of a species in the ecosystem. the sum of the abiotic factors required or tolerated by the species. the occupation (needs and role) of the species in the ecosystem, the location where the species resides. The process of subdividing a niche into smaller niches is called: resource partitioning. interspecific competition. commensalism. mutualism. symbiosis. Members of the same species living in the same area and interacting are: a community. a population. an ecosystem. a biosphere.

Solution

30.The correct answer is:a.osmosis.

Reason: Osmosis best defines the above process.

31.The correct answer is:d.anaerobes.

Reason: Anaerobes survive without the availability of oxygen.

32.The correct answer is:a.interspecific competition.

Reason:In interspecific competition different species have requirement for the same resources.

33.The correct answer is:d.competitive exclusion.

Reason:Since two differemt species have same requirements, one species can succeed and eliminate the other from the habitat.

34.The correct answer is:d.the occupation (needs and role) of the species of the ecosystem.

Reason:The niche defines what role and position does a species have.

35.The correct answer is:a.resource partitioning.

Reason:Resource partitioning best defines the above process.

36.The correct answer is:b.a population.

Reason:A population defines an interaction between members of same species residing in same area.