The total amount of solid material dissolved in water is known as:
a) salinity b)solute c)insoluble residue d) load
A rapid change in temperature with depth in the ocean is called the_______.
a) pycnocline b) homocline c) isocline d) thermocline e) barocline
A rapid change in density with depth in the ocean is called the ____. a) pycnocline b)thermocline c) isocline d) barocline e) homocline
Productivity in temperate oceans is determined by ______.
a)latitude b)ocean currents c)seasons d) all of these
d) all of these
The emission of water vapor and other gases from volcanoes is called _____.
______ refers to the change in temperature with depth in the ocean.
The pycnocline is a rapid change in _____ with depth in the ocean.
____ include all organisms that drift with ocean currents.
____ refers to the mass of all living organisms on Earth.
Among plankton, animals that drift on ocean currents are specifically known as _____.
Clams, sponges, and crabs are all examples of ____ organisms.
In the food chain, each feeding stage is called a ____ level. a) replenishment b) trophic c) bios d) none of these
Choose the option that doesnt fit. a)sodium chloride b)magnesium chloride c) sodium sulfate d)carbon dioxide
Choose the option that doesnt fit. a) plankton b) nekton c) neritic d) benthos
Choose the option that doesnt fit. a)photic zone b) intertidal zone c) neritic zone d) oceanic zone
A) photic zone
Density in seawater is determined by _____. a) salinity b) temperature c) both A and B d) none of these
c) both A and B
Most marine animals live near the surface of the ocean because of _____, which supports photsynthesis by marine algae that form the basis of the food chain. a) sunlight b) warmer temperatures c) air d) all of these
d) all of these
Organisms, such as algae and bacteria, that drift with ocean currents are known as ____.
a) plankton b) biomass c) benthos organisms d) nekton e) none of these
The mass of all living organisms on Earth is called the ____. a) biomass b) nekton c) plankton d) benthos organisms
Technically, algae are called _____. a)bioplankton b) zooplankton c) nekton d) benthos organisms
Animals capable of moving independently of the ocean currents, by swimming or other means of propulsion, are called _____. a) plankton b) biomass c)nekton d)benthos organisms
____ organisms live on or in the ocean bottom. a) nektonic b) scavenging c) benthos d) planktonic e) none of these
The upper part of the ocean into which sunlight penetrates is called the ____ zone. a)photic b) life c) mixing d) thermal
The ____ zone is the near-surface zone of the ocean where light is strong enough for photosynthesis to occur. a) aphotic b)photic c)synphotic d)euphotic
The area where the land and ocean meet and overlap is called the ___ zone. a) oceanic b) intertidal zone c) neritic d) none of these
b) intertidal zone
Seaward of the low tide line is called the ____ zone. a) oceanic b) neritic c) intertidal d)none of these
Open ocean of any depth where animals swim or float freely is known as the ______ zone. a)pelagic b)unrestricted c)benthic d)abyssal
The amount of carbon fixed by organisms through the synthesis of organic matter using energy derived from solar radiation is called ____. a) primary productivity b) photosynthesis c) chemosynthesis d) none of these
a) primary productivity
Thermoclines in the ocean are best developed at ____. a) lower latitutdes b) both high and low latitudes c) regions close to continents d) higher latitudes
a) lower latitudes
The proportion of dissolved substances in seawater is expressed as 0/00 which is the same as ____. a) parts per hundred b)parts per million c) parts per thousand
c) parts per thousand
The most abundant salt in seawater is _____. a) NaCl B) KCL c) MgCl2 d) none of these
The dissolved materials in seawater are thought to originate from chemical weathering of rocks on the continent and are also