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124 Cards in this Set

  • Front
  • Back

the first marine biology lab in US

Wood's Hole, MA

which of the following was not a contribution of darwin's

Recognizing that gills were the breathing apparatus of fish

a control can be best defined as

a variable that is kept constant in an experiment

glucose is an example of a

carbohydrate

organisms that make their own food are known as

autotrophs

what is missing from the following equation for photosynthesis?


co2+h2o+_____--> Glucose+o2

sunlight

one of the by-products of photosynthesis is

carbon dioxide

the most important nutrients for plant growth in the ocean are

nitrogen and phosphorus

which of the following is not apart of all cells?

nucleus

aerobic respiration takes place in this organelle

mitochondria

these are long protein filaments that aid in cellular locomotion

flagella

a clam living in the sediment at the bottom of the ocean would be considered

benthic

a group of mussels of a particular type living together on a rock back is an example of

population

organisms whose body temperature changes with changes in external temperature are known as

poikilotherms

which of the following is not part of the theory of natural selection

the best adapted individuals produce less offsprings

moths changing color based on the floor of the tree in which they live is an example of

directional selection

the fossil record is incomplete because

very few organisms were preserved as fossils


organisms tend to decay before becoming fossil


animal with hard parts are preserved more easily

which of the following evolve?

populations

4 characteristics of all living organisms

cells


reproduce


metabolize


react to the external environment

along with water all living things are made up of four types of biological molecules

carbohydrates


proteins


lipids


nucleic acid

outer barrier of the cell allowing only certain things into and out of

cell membrane

membrane-bound organelle where biological molecules are modified, stored and packaged

golgi bodies

where photosynthesis takes place

chloroplast

gelatinous contents of the cell

cilia

all marine animals have gills so whales have gills

deduction

A control can be best defined as

A variable that is kept constant in an experiment

A marine biologist observes that mako sharks, sardines, and salmon leap out of the water. An example of induction from these observations is

All fishes leap out of the water

An experiment can be best described as

An artificially created situation to test a hypothesis

Charles Darwin, who proposed the theory of evolution, was actually a marine biologist who specialized in

Barnacles

How much of the Earth's oxygen is generated by marine organism

50%

Jacques Cousteau is best known for helping to perfect which marine technology?

Scuba

One of the following is outside the realm of science

Observations made using extrasensory perception (ESP)

Science is limited since it cannot

Make judgments about ethics, values, and morality

Scientific knowledge is ultimately traced to

Observations

The Challenger expedition made collections of marine organisms

Around the world

The factors that might affect observations are called

Variables

The first marine laboratory in the world was established in

italy

Which of the following statements about Charles Darwin is not true?

Darwin proposed the theory of evolution by natural selection

An example of an island arch along a trench

Aleutian Islands

Black smokers form as a result of the accumulation of

black smokers

Density is

The mass of a substance per unit volume

How much of the Earth's surface is covered by the world ocean?

71%

Lithogenous sediments are those that come from

Erosion of land

Oceanographers often use the name "Southern Ocean" to refer to the body of water

Around Antarctica

Sea level naturally fluctuates through geologic time. What is occurring now with regards to sea level?

sea level is rising

The earth's magnetic field is thought to be caused by movements of liquid metal in which of the earth's layers?

Outer core

The east coast of the United States is a passive margin characterized by

Gentle continental slope

The most biologically rich part of the ocean is the

Continental shelf

The process by which a lithospheric plate descends into the mantle is called

subduction

The solid layer of the earth found below the crust is called the

mantle

The steepest part of the continental margin is known as the

Continental slope

The type of plate boundary where plates move past each other is called

Shear boundary

The world's smallest and shallowest ocean

arctic ocean

There is evidence that the earth and the rest of the solar system formed about

4.5 billion

Which of the following is not true of mid-ocean ridges?

The sediments get thinner as one moves away from them

Which of the following is not true of oceanic crust?

It consists mostly of granite

A cold current flows almost into the Equator along the

Pacific coast of South America



the super continent that existed 190 million years ago

pangea

sea floor spreading overs at these geological features

mid ocean ridges

the bond that form between molecules of water are called

hydrogen bonds

the salinity of water is expressed

parts per thousand

average salinity of the ocean is

%35

shells of microorganism that sink to the bottom of the ocean are considered this type of sediment

biogenous

pressure increases with depth by adding one atmosphere of pressure for every

10 meters of depth

which gas dissolves best in water

carbon dioxide

coriolis effect is the direct result of

the rotation of the earth

a species in an ecosystem that plays a central role in the health of that ecosystem and whose removal may cassette collapse of the ecosystem

keystone species

primary reason the southern sea otter nearly went extinct by the early 1900's?

thick luxurious fur

which of the following is most common interaction between species

competition

a fundamental role of decomposers

releasing nutrients needed by autotrophs

Food from the sea represents about _____ of all food eaten by humans.

1%

The highest catches of finfish are

Herring, sardines, and related fishes.

If one looks at the world commercial catches of seafood, the total amounts

Peaked in 1990 and since then have declined.

Which of these fisheries of the Grand and Georges Banks off eastern Canada and the northeastern United States once provided one of the richest fisheries in the world but now are nearly gone and was thus closed in 1992?

COD

The sustainable yield for a fishery is

The amount that can be caught and maintain a stable population.

The maximum sustainable yield of a harvested fish population depends on all of these except

Whether the fish is demersal or pelagic

Even if fishing is stopped on an overexploited species, it may not recover its population levels because of all of these factors but which one?

The reproductive population has been reduced too far.

When underutilized species of marine animals caught as a result of valuable species of animals being caught and usually discarded this is called:

by-catch

Open mariculture is used to grow mainly which of these

Oysters and seaweeds

Recreational fisheries can damage fish stocks because they

Target and deplete large predatory fishes

While desalination currently is being used in a few countries such as Saudi Arabia and is expanding elsewhere, the main factor that prevents it from being used to produce drinking water in arid parts of the U.S.A. is:

It is expensive

Off-shore oil and gas production may soon be expanded to the

the arctic ocean

Feminization of male fish has been linked to chemicals in sewage. The chemicals are from the urine of women on birth control pills

true

Most of the polluting oil in North America comes from tanker and pipeline spills

false

Because of biological magnification, which of these animals would accumulate the most pesticides per body weight?

Bald eagle

Not all threatened or rare marine species have been over-exploited for food, hides or oil. For what other purpose have many such as corals, mollusks, or turtles been taken and killed?

Decorations and souvenirs

Marine thermal pollution is detrimental to local areas of water because

It decreases the ability of water to hold dissolved oxygen

A major cause of the spread of exotic or alien species is

The dumping of ship ballast water

All of the following threaten or destroy coral reefs except for which activity?

Reducing the amount of fertilizers used in farms and gardens

The term endangered species is defined as:

A species in immediate danger of extinction

Earth’s temperatures are stable because we are surrounded by ________ which allows the right amount of sunlight in to warm the Earth

an atmosphere

This layer keeps us “not too hot in the summer” and “not too cold in the winter.” Scientists call this the ________ effect

green house effect

Certain gases in the atmosphere – water vapor, carbon dioxide, methane and nitrous oxide – help maintain the Earth’s temperatures and climate. These are called: __________

green house gases

The correlation between CO2 levels in the atmosphere and mean global temperature shows that increased CO2 levels cause a rise in mean global temperature.

false

The variations in solar irradiance on Earth associated with small periodic changes in the Earth's orbit around the Sun are called

Milankovich Cycles

Evidence for global warming is provided by which of the following

The ice cover in the Arctic has decreased significantly in the last 30 years.Large amounts of coral worldwide are dying

Considering climate change, melting of ice sheets and glaciers causes the`

endangering of species

Considering climate change, increased global temperatures causes the

desertification

Considering climate change, rise in water level in oceans and seas due to melted ice sheets and glaciers causes

destruction of human civilization

The most abundant greenhouse gas is

water vapor

Which is not a major greenhouse gas

water vapor

hich of the following gases are mainly responsible for the atmospheric greenhouse effect

water vapor and carbon dioxide

Which of the following processes acts to remove carbon dioxide from the atmosphere?

photosynthesis

Seawater and carbon dioxide combine in the ocean to form what compound?

carbonic acid

Which organisms in the ocean are the first to be affected by ocean acidification?

shelled animals

Increased carbon dioxide in seawater decreases the availability of this compound used for shell building

carbonate

Eutrophication is

increased growth of plants in water due to high load of nutrients

A limiting nutrient, what does that mean?

if more nutrients are add eutrophication increases

Algin is a natural product extracted from seaweeds. It is used as

emulsifier in processed foods

Coralline red algae receive this name due to their ability to

accumulate calcium carbonate

Encrusting algae are commonly found living

on rocks

Green algae are characterized by:

having pigments similar to land plants

Mangroves live in coastal waters that

are well protected from strong wave action

Marine flowering plants can be best differentiated from seaweeds by the fact that the marine flowering plants

reproduced by seeds

Marine flowering plants include all of the following except

kelps

one of these groups of algae is found mostly in fresh water and on land, that is, only a small number is actually marine

green algae

Reproduction in seaweeds can be very complex

asexual and sexual

Salt-tolerant plants such as salt-marsh plants are called:

halophytes

Seaweeds and many bacteria are primary producers. In contrast to most of the bacteria that are primary producers, however, all seaweeds

are photosynthetic

Seaweeds are included among the Protista. Some biologists, however, place them instead in the

kingdom plantae

Seaweeds can be best differentiated from true plants because seaweeds

have no true roots, stems, leaves

The most complex and largest of all the seaweeds is included among one of these groups:

brown algae

The root-like, anchoring structure of many seaweeds is called the

holdfast

The thallus of a seaweed refers to its

complete body