Introduction To Marine Biology 4th Edition Pdf

Description

Introduction To Marine Biology Pdf
Introduction To Biology Textbook Pdf
Introduction To Marine Biology 4th Edition Pdf Download
Introduction To Marine Biology 4th Edition Pdf Free
Marine Biology Textbook Pdf
Marine Biology 11th Edition Pdf

BUNDLE Introduction to the Biology of Marine Life, Eleventh Edition with the updated Laboratory and Field Investigations in Marine Life, and SAVE (Bundle ISBN: 978-1-284-12406-4) Each new print copy includes Navigate 2 Advantage Access that unlocks a comprehensive and interactive eBook, student practice activities and assessments, a full suite. Aug 01, 2013 PDF On Aug 1, 2013, Jeffrey Levinton published Marine Biology: Function, Biodiversity, Ecology, 4th Edition, 2013 Front Matter Find, read and cite all the research you need on ResearchGate.

Introduction to Marine Biology 4^th Edition Karleskint Turner Small Test Bank

ISBN-13: 978-1133364467

ISBN-10: 1133364462

Think about it like this. You have one text book in your class. So does your teacher. Each text book has one test bank that teachers use to test students with. This is the nursing test bank for the book you have. All authentic chapters and questions and answers are included.

Since we know that students want their files fast, we listened and made it exactly the way you want. So you can download your entire test bank today without waiting for it.

We try our best to give nursing students exactly what they want. So your order is 100 percent anonymous and discreet. We do not keep any logs of any kind on our website and use a 256 bit SSL encryption on our site which you can verify.

As long as the file is not downloaded, we can give you the correct file. Please send us an email and we will send you the correct file right away.

Of coarse you can, samples are provided on this page as well. Please scroll down to view a sample. If it is not on this page, email us and we will send you a free sample chapter which you can view before your purchase.

Most of the formats are going to be in a PDF format. We also have files in Microsoft Word. They can be viewed on your computer or phone.

You certainly can. Please email us by sending an email to us. Many students send us emails thanking us for helping them.

Chapter 12—Marine Mammals

MULTIPLE CHOICE

All marine mammals:

a.	are faster swimmers compared to other marine animals.
b.	have lungs modified to breathe underwater.
c.	are aggressive in obtaining food.
d.	are intelligent compared to other marine animals.
e.	have baleen.

ANS: D PTS: 1 DIF: Recall REF: 315

All the following are characteristics of marine mammals except:

a.	mammary glands.
b.	gills.
c.	a placenta.
d.	being homeothermic.

ANS: B PTS: 1 DIF: Synthesis REF: 315

Marine mammals, because of the energy demands of being homeothermic, expend about ____ times as much energy as other marine organisms.

a.	5
b.	10
c.	15
d.	20
e.	25

ANS: B PTS: 1 DIF: Recall REF: 315

Sea otters are protected from the cold by having:

a.	thick blubber.
b.	thick fur.
c.	waxy fur.
d.	fatty tissue.
e.	thick skin.

ANS: B PTS: 1 DIF: Recall REF: 316

Sea otters consume nearly ____% of their body weight per day.

a.	10
b.	25
c.	30
d.	40
e.	50

ANS: B PTS: 1 DIF: Recall REF: 317

Sea lions and seals belong to the suborder:

a.	Carnivora.
b.	Sirenia.
c.	Cetacea.
d.	Pinnipedia.
e.	Odontoceti.

ANS: D PTS: 1 DIF: Recall REF: 319

Pinnipeds molt

a.	in the ocean.
b.	on shore.
c.	in the winter.
d.	throughout the year.
e.	They do not molt.

ANS: B PTS: 1 DIF: Recall REF: 319

Pinniped means

a.	clawed footed.
b.	flipper footed.
c.	feather footed.
d.	paddle footed.
e.	split footed.

ANS: C PTS: 1 DIF: Recall REF: 319

In eared seals, the main propulsive force for swimming is produced by the:

a.	forelimbs.
b.	hindlimbs.
c.	undulations of the body.
d.	tail.
e.	caudal fin.

ANS: A PTS: 1 DIF: Recall REF: 319

True seals’ characteristics include

a.	lack of external ear.
b.	swimming with forelimbs.
c.	swimming with hind limbs.
d.	both a and c
e.	both a and b.

ANS: D PTS: 1 DIF: Recall REF: 319

The Otariidae characteristics include

a.	external ears.
b.	swimming with hind limbs.
c.	swimming with fore limbs.
d.	both a and c.
e.	both a and b.

ANS: D PTS: 1 DIF: Recall REF: 319

Which of the following species is endangered

a.	California sea lion
b.	northern fur seal
c.	Steller’s sea lion
d.	both a and b

ANS: C PTS: 1 DIF: Recall REF: 319 | 322

All the following are all major points of the article Where Have the Steller’s Sea Lions Gone except:

a.	Some biologists thought commercial fishing was culprit.
b.	Killer whales may play a role in pinniped population regulation.
c.	Scientific views undergo revision with new data and findings.
d.	Scientists often come to contradictory conclusions when examining the same phenomenon.
e.	Steller’s sea lions decimated the salmon population in Alaska.

ANS: E PTS: 1 DIF: Synthesis REF: 322

Which pinniped can use its hind limbs to walk on land?

a.	Guadalupe fur seal
b.	Steller’s sea lion
c.	leopard seal
d.	elephant seal
e.	harbor seal

ANS: B PTS: 1 DIF: Recall REF: 319 | 321

The deepest diving pinnipeds are the:

a.	sea lions.
b.	harbor seals.
c.	Weddell seals.
d.	elephant seals.
e.	Stellar’s sea lion.

ANS: D PTS: 1 DIF: Recall REF: 320

Known for the ability to dive deep, the ____ has set a record of 1530 m.

a.	harbor seal
b.	Weddel seal
c.	Steller’s sea lion
d.	leopard seal
e.	northern elephant seal

ANS: E PTS: 1 DIF: Recall REF: 320

Male animals that mate with and control more than one female at a time are called:

a.	hermaphroditic.
b.	heterogenous.
c.	polygynous.
d.	androgynous.
e.	monogamous.

ANS: C PTS: 1 DIF: Recall REF: 320

Most pinnipeds mate:

a.	every two years.
b.	every four years.
c.	once in their lifetime.
d.	annually.
e.	every three years.

ANS: D PTS: 1 DIF: Recall REF: 320

The leopard seal’s primary predator is called the:

a.	sperm whale.
b.	polar bear.
c.	killer whale.
d.	salt water crocodile.
e.	Weddel seal.

ANS: C PTS: 1 DIF: Recall REF: 323

The ____ feeds on penguins and other seals.

a.	Guadalupe fur seal
b.	elephant seal
c.	Steller’s sea lion
d.	leopard seal
e.	harbor seal

ANS: D PTS: 1 DIF: Recall REF: 323

The structure used to amplify an elephant seal bull’s roar is a(n):

a.	inflated proboscis.
b.	hallow tusk used as a horn.
c.	sirenaphores.
d.	blowhole.
e.	melon.

ANS: A PTS: 1 DIF: Recall REF: 324

The entertaining seals of marine attraction parks are:

a.	sea lions.
b.	harbor seals.
c.	elephant seals.
d.	fur seals.
e.	harp seals.

ANS: A PTS: 1 DIF: Recall REF: 321

Manatees and dugongs belong to the order:

a.	Pinnipedia.
b.	Cetacea.
c.	Carnivora.
d.	Sirenia.
e.	Fissipedia

ANS: D PTS: 1 DIF: Recall REF: 324

The sirenians

a.	rest on shore.
b.	bear young on land.
c.	are completely aquatic.
d.	are fish eaters.
e.	don’t have blubber since they live in tropical water

ANS: C PTS: 1 DIF: Recall REF: 324

The following are all differences between manatees and dugongs except:

a.	fresh and seawater habitat for manatees, dugongs only live in seawater.
b.	dugongs have a larger head.
c.	dugongs have a shorter flipper.
d.	manatees’ forelimbs form flippers, dugongs’ do not.

ANS: D PTS: 1 DIF: Synthesis REF: 325

The following are all similarities between sirenians and whales except:

a.	streamlined, practically hairless bodies.
b.	forelimbs modified to form flippers.
c.	tail flukes.
d.	diet of macrophytes.

ANS: D PTS: 1 DIF: Synthesis REF: 325–327

Manatees are mostly found in:

a.	cold polar waters.
b.	Antarctica.
c.	tropical estuaries.
d.	temperate coastal areas.
e.	Eastern Pacific Ocean.

ANS: C PTS: 1 DIF: Recall REF: 325

The greatest threat to the Florida manatees is

a.	loss of habitat.
b.	human predation.
c.	being mauled or killed by boats.
d.	stranding in thermal plumes of power plants.
e.	disease from urban runoff.

ANS: C PTS: 1 DIF: Recall REF: 325

Manatees feed mostly on:

a.	small fishes.
b.	benthic invertebrates.
c.	plankton.
d.	aquatic plants.
e.	other marine mammals.

ANS: D PTS: 1 DIF: Recall REF: 325

Whales, dolphins, and porpoises all belong to the order:

a.	Sirenia.
b.	Cetacea.
c.	Carnivora.
d.	Pinnipedia.
e.	Fissipedia.

ANS: B PTS: 1 DIF: Recall REF: 326

Those marine mammals most adapted to a marine existence are the

a.	pinnipeds.
b.	sirenians.
c.	cetaceans.
d.	sea otters.

ANS: C PTS: 1 DIF: Recall REF: 326–327

It is believed that cetaceans evolved from:

a.	a terrestrial mammal.
b.	a pinniped.
c.	fishes.
d.	polychaetes.
e.	dinosaurs.

ANS: A PTS: 1 DIF: Recall REF: 326

Through evolution, the hindlimbs of cetaceans have been modified, eventually becoming

a.	flippers.
b.	tail.
c.	non-existent.
d.	flukes.
e.	enlarged.

ANS: C PTS: 1 DIF: Recall REF: 327

To reduce drag whales have eliminated

a.	external ears.
b.	pectoral fins.
c.	external appendages.
d.	mammary glands.
e.	flukes.

ANS: A PTS: 1 DIF: Recall REF: 327

The absence of sweat glands in cetaceans aids in

a.	maintaining body heat.
b.	conserving water.
c.	increasing internal salinity.
d.	reducing drag.
e.	swimming efficiency.

ANS: B PTS: 1 DIF: Recall REF: 327

Adaptations for deep diving in cetaceans include all the following except:

a.	expelling air from the lungs.
b.	large lungs with large number of air sacs.
c.	rib cage that can collapse.
d.	sonar for detecting the depth.
e.	high red blood cell count

ANS: D PTS: 1 DIF: Synthesis REF: 328

Adaptations for deep diving in cetaceans include all the following except:

a.	large amount of hemoglobin.
b.	large amount of cholesterol.
c.	lowered sensitivity to lactic acid.
d.	high levels of myglobin.
e.	decreased metabolism.

ANS: B PTS: 1 DIF: Synthesis REF: 328

Myoglobin is a protein found in the muscles of cetaceans that:

a.	stores energy.
b.	stores oxygen.
c.	maintains buoyancy.
d.	maintains heat.
e.	stores ATP.

ANS: B PTS: 1 DIF: Recall REF: 328

The milk of cetaceans is very rich in:

a.	fat.
b.	protein.
c.	carbohydrates.
d.	cellulose.
e.	DNA.

ANS: A PTS: 1 DIF: Recall REF: 331

Baleen plates are composed of:

a.	calcium carbonate.
b.	cellulose.
c.	keratin.
d.	chitin.
e.	silica.

ANS: C PTS: 1 DIF: Recall REF: 331

The food of most baleen whales consists of:

a.	benthic invertebrates.
b.	nektonic fishes.
c.	algae.
d.	plankton.
e.	detritus.

ANS: D PTS: 1 DIF: Recall REF: 331

Bubble nets for confusing and trapping plankton are produced by:

a.	gray whales.
b.	humpback whales.
c.	minke whales.
d.	sperm whales.
e.	dolphins.

ANS: B PTS: 1 DIF: Recall REF: 333

Fin whales feed mostly on:

a.	benthic invertebrates.
b.	nektonic fishes.
c.	algae.
d.	krill.
e.	detritus.

ANS: D PTS: 1 DIF: Recall REF: 331

The largest of all the whales is the:

a.	sperm whale.
b.	sei whale.
c.	humpback whale.
d.	blue whale.
e.	megalodon.

ANS: D PTS: 1 DIF: Recall REF: 333

Breaching is the name given to the activity of whales when they:

a.	mate.
b.	jump out of the water.
c.	capture their food.
d.	migrate long distances.
e.	give birth.

ANS: B PTS: 1 DIF: Recall REF: 329

Spy hopping is a term given to whales when they:

a.	jump out of the water.
b.	partially get their body out of the water.
c.	capture their food.
d.	mate.
e.	play in groups.

ANS: B PTS: 1 DIF: Recall REF: 329

Spy hopping behavior is thought to be for

a.	mating.
b.	observing objects other than whales on the surface.
c.	capturing their food.
d.	attracting a mate.
e.	communicating with podmates.

ANS: B PTS: 1 DIF: Recall REF: 329

Tail cocking behavior in whales is thought to be for

a.	killing prey.
b.	attracting mates.
c.	aggression.
d.	preparation for a dive.
e.	dislodging parasites.

ANS: C PTS: 1 DIF: Recall REF: 329

A group of whales is called a

a.	harem.
b.	pod.
c.	covey.
d.	herd.
e.	bevy.

ANS: B PTS: 1 DIF: Recall REF: 331

The only population of humpback whales that is showing recovery from the effects of whaling is the:

a.	North Pacific population.
b.	North Atlantic population.
c.	Maui population.
d.	Southern Hemisphere population.
e.	Southern Pacific population.

ANS: B PTS: 1 DIF: Recall REF: 333

Which whale is not a rorqual?

a.	blue whale
b.	fin whale
c.	humpback whale
d.	right whale
e.	killer whale

ANS: D PTS: 1 DIF: Synthesis REF: 331 | 335

A whale that floated when harpooned was called a(n) ____.

a.	orca
b.	right whale
c.	blue whale
d.	fin whale
e.	sperm whale

ANS: B PTS: 1 DIF: Recall REF: 331

All of the following are members of suborder Odontoceti, except:

a.	dolphins.
b.	sperm whales.
c.	narwhales.
d.	gray whales.
e.	orcas.

ANS: D PTS: 1 DIF: Synthesis REF: 331 | 334 | 335

All of the following are members of suborder Mysticeti, except:

a.	humpback whales.
b.	right whales.
c.	orcas.
d.	blue whales.
e.	fin whales.

ANS: C PTS: 1 DIF: Synthesis REF: 331 | 334 | 335

The baleen whale which carries the most barnacles is the

a.	right whale.
b.	sperm whale.
c.	gray whale.
d.	orca.
e.	blue whale.

ANS: C PTS: 1 DIF: Recall REF: 334

The melon of dolphins and other toothed whales is used for:

a.	storage of food.
b.	protecting the brain.
c.	focusing sound pulses.
d.	receiving sound pulses.
e.	producing sounds.

ANS: C PTS: 1 DIF: Recall REF: 339

One of the most favored food items of sperm whales is:

a.	giant squid.
b.	penguins.
c.	plankton.
d.	seals.
e.	smaller cetaceans.

ANS: A PTS: 1 DIF: Recall REF: 335

Ambergris comes from the ____.

a.	right whale
b.	sperm whale
c.	gray whale
d.	orca
e.	blue whale

ANS: B PTS: 1 DIF: Recall REF: 336

The only cetaceans known to feed on warm-blooded animals are the:

a.	sperm whales.
b.	bottlenose dolphins.
c.	killer whales.
d.	porpoises.
e.	minke whales.

ANS: C PTS: 1 DIF: Recall REF: 338

TRUE/FALSE

Pinnipeds have to come ashore to give birth.

ANS: T PTS: 1 REF: 320

True seals rely on their hindlimbs for forward swimming propulsion.

ANS: T PTS: 1 REF: 319

In eared seals, the hindlimbs can rotate at right angles to the body and can be used for walking on land.

ANS: T PTS: 1 REF: 319

Sea lions have shorter lactation periods than true seals.

ANS: F PTS: 1 REF: 320–321

Unlike pinnipeds, sirenians are completely free from the terrestrial environment.

ANS: T PTS: 1 REF: 324

Manatees form pair bonds that last even after mating.

ANS: T PTS: 1 REF: 325

The cetacean body is covered with fine hairs.

ANS: F PTS: 1 REF: 327

Cetaceans lack sweat glands in their skin.

ANS: T PTS: 1 REF: 327

Gray whales spend the winter months in the Bering Sea where they mate and give birth.

ANS: F PTS: 1 REF: 334

Vision in toothed whales is very strong.

ANS: F PTS: 1 REF: 338

Toothed whales use low frequency clicks to make out the outline of potential prey.

ANS: T PTS: 1 REF: 338–339

The spermaceti of sperm whales is composed of waxy and oily materials.

ANS: T PTS: 1 REF: 335

Introduction To Marine Biology Pdf

Ambergris is produced by dolphins.

ANS: F PTS: 1 REF: 336

Dolphins have a beak whereas porpoises have a rounded blunt head.

ANS: T PTS: 1 REF: 336–337

MATCHING

Match the food with the most closely associated whale.

a.	squid
b.	crabs, cuttlefish, flounder and halibut
c.	krill

Beluga Whale

Sperm Whale

Blue Whale

ANS: B PTS: 1 REF: 336

ANS: A PTS: 1 REF: 335

ANS: C PTS: 1 REF: 333

Match the food with the closely associated predator.

a.	crustaceans, molluscs and echinoderms
b.	fish
c.	sea urchins
d.	water plants

Sea Otter

Eared Seals

Walruses

Dugong

ANS: C PTS: 1 REF: 317

ANS: B PTS: 1 REF: 319

ANS: A PTS: 1 REF: 324

ANS: D PTS: 1 REF: 325

Match the food item with the animal that consumes it.

a.	vegetation
b.	plankton
c.	fish, squid

Toothed Whales

Baleen Whales

Sirenians

ANS: C PTS: 1 REF: 335

ANS: B PTS: 1 REF: 331

ANS: A PTS: 1 REF: 325

Match the location with the species.

a.	southeastern United States
b.	South America
c.	Africa
d.	Indo-pacific

Trichechus manatus

Trichechus senegalensis

Trichechus inunguis

Dungong dugon

ANS: A PTS: 1 REF: 325

ANS: C PTS: 1 REF: 325

ANS: B PTS: 1 REF: 325

ANS: D PTS: 1 REF: 325

Match the population characteristic with the species.

a.	endangered
b.	extinct
c.	population size 1.8 million
d.	population size 22,000

Steller’s Sea Cow

Northern Manatee

Sperm whale

Eastern Pacific Gray Whale

ANS: B PTS: 1 REF: 325

ANS: A PTS: 1 REF: 325

ANS: C PTS: 1 REF: 334

ANS: D PTS: 1 REF: 334

Match the insulation with the closely associated animal.

a.	Fur
b.	Fur and fat
c.	Blubber

Whales

Sea Otter

Sea Lion

ANS: C PTS: 1 REF: 327

ANS: A PTS: 1 REF: 317

ANS: B PTS: 1 REF: 319

Match the prey detection method with the most closely associated animal.

a.	manipulating with flippers
b.	echolocation
c.	eyesight

Dolphins

Seals

Sirenians

ANS: B PTS: 1 REF: 338

ANS: C PTS: 1 REF: 319

ANS: A PTS: 1 REF: 325

Match the possible importance of a whale behavior with its most closely associated behavior.

a.	establishing dominance
b.	marking position
c.	looking around

Spy Hopping

Breaching

Slapping

ANS: C PTS: 1 REF: 329

ANS: A PTS: 1 REF: 329

ANS: B PTS: 1 REF: 329

Match the possible importance of a whale behavior with its most closely associated behavior.

a.	marking a position
b.	unknown
c.	aggressive behavior

Tail Slapping

Tail Cocking

Flipper Flapping

ANS: A PTS: 1 REF: 329

ANS: C PTS: 1 REF: 329

ANS: B PTS: 1 REF: 331

Match the purpose with the mechanism it is most closely associated with.

a.	locate prey
b.	trap prey near surface
c.	filter feed

Baleen plates

Bubble net

Strong sonar pulse

ANS: C PTS: 1 REF: 333

ANS: B PTS: 1 REF: 333

ANS: A PTS: 1 REF: 339

ESSAY

List the three major groups of pinnipeds and outline the anatomical differences between them.

ANS:

The pinnipeds families include Otaridae (eared seals), Phocidae (true seals), and Odobenidae (walruses). In the eared seals external ears are present and the hind limbs of these pinnipeds rotate at right angles to the body, which facilitates walking on land. In the true seals and walruses, there are no external ears. True seals are also not capable of rotating their hind limbs forward so these animals are rather clumsy on land. Walruses are the largest of the three pinnipeds and have tusks.

PTS: 1 DIF: Synthesis REF: 319–324

Describe at least 3 physiological adaptations in pinnipeds that enable them to dive deep.

ANS:

They exhale before diving, slow their metabolism by 20% and reduce heart rate. Blood is redistributed to vital organs such as the brain and heart to maintain their essential functions. The other organs do not need to fully function on a dive.

PTS: 1 DIF: Recall REF: 319–320

You are the aquarium keeper at a large oceanarium. The facility acquires a manatee, and you are charged with its care. Explain what you would feed it.

ANS:

Sirens feed exclusively on vegetation growing underwater, such as seagrasses. Fresh green produce such as spinach, lettuce, etc. could supplement its diet.

PTS: 1 DIF: Application REF: 325

Describe the feeding behavior of humpback whales. Why do they employ this type of food capture method?

ANS:

Humpback whales feed on small schools of fishes and invertebrates. They feed by first circling the school from below while blowing a screen of bubbles around their food as a trap. Next they come up through the tube of bubbles they have created with mouths open and consume the food. This method of food capture concentrates the prey.

PTS: 1 DIF: Recall REF: 333

List the 3 major groups of baleen whales and give their major features.

ANS:

The three major groups of baleen whales are the right whales, rorquals, and the gray whales. Right whales are characterized by having no dorsal fins and no pleats or grooves on their lower jaw. Rorquals have dorsal fins and grooves on their lower jaw that aid in the expansion of the mouth for feeding purposes. Gray whales lack grooves and a distinct dorsal fin but have a dorsal bump toward the rear third of the body.

PTS: 1 DIF: Recall REF: 331–334

Why must sea otters consume 25% of their body weight in food every day?

ANS:

This is most likely the result of the necessity of maintaining a high metabolic rate in these warm-blooded animals that live in relatively cold waters.

PTS: 1 DIF: Recall REF: 317

What reproductive benefit is obtained by the polygynous sexual habits of many marine mammals, such as elephant seals?

ANS:

Introduction To Biology Textbook Pdf

In nature, reproductive output is usually limited by the availability of eggs produced by the females. Males produce many millions of sperm and can thus fertilize numerous females without effort. Having one dominant male fertilizing numerous females ensures that only the fittest males transfer their genes to the next generation. Those males that successfully obtain and defend a harem of females are thought to be genetically fit.

PTS: 1 DIF: Synthesis REF: 320

Explain why phocids, especially ones living in polar areas, generally have very short lactation periods compared to eared seals.

ANS:

Many phocids live in polar waters, where the ice floes tend to break and crack. As a result the mothers want to ensure that the young develop as quickly as possible in order for them to enter the water as soon as possible. Another reason is that the mothers cannot sustain extended periods of lactation because they could eventually lose too much body fat.

PTS: 1 DIF: Recall REF: 320–321

Compare sirenians and cetaceans, describing 4 ways that they are similar.

ANS:

Sirenians share many similar characteristics such as reduced body hair, disappearance of hindlimbs, possession of tail flukes, possession of flippers, and a completely aquatic existence.

PTS: 1 DIF: Synthesis REF: 325

Describe the fossil and embryological evidence for the terrestrial origins of cetaceans.

ANS:

Fossil records show massive animals, with four limbs, that resemble modern day whales. Other evidence is observed in modern cetaceans. First, the embryos of whales, like all mammals, have four limbs. The hindlimbs eventually disappear during the development of the embryo and all that remains is an obsolete pelvic girdle. The embryos of whales also show a normal mammalian nostril arrangement, but this does not persist, as the nostrils migrate to the dorsal side of the animals to become the blow holes.

PTS: 1 DIF: Recall REF: 326

Describe at least 3 adaptations of modern whales adapted for a completely aquatic existence.

ANS:

First and foremost is the overall shape of the cetacean body. It is shaped like that of a fish, which implies that this shape is ideally suited for aquatic habitats. The nostrils of whales, which are called blow holes, occupy the dorsal surface of the animals, making it much easier to breathe without having to lift the head completely out of the water. Whales are also covered by a thick layer of blubber in order to minimize heat loss and maximize buoyancy in cold waters. The ears of whales are blocked by wax to minimize possible damage from the marine environment and to eliminate any compressible air passages. These ears are also internal, which could eliminate possible drag effects. Finally, the whale circulatory system is designed to minimize heat loss by incorporating a heat exchange mechanism in the appendages.

PTS: 1 DIF: Synthesis REF: 326–327

Explain the unique purpose of baleen plates. What trophic position do baleen whales occupy, and what advantage is it to the baleen whales to consume the diet they do?

ANS:

The baleen replaced teeth and consists of keratin fibers fused together. They function to strain plankton, mainly krill, on which the whales feed from the sea. Krill feed on phytoplankton. As a secondary level consumer the baleen whales have access to ten or more times the energy and organic material available to the toothed whales who may be feeding at the third to sixth tropic level. This enables them to be the largest animals.

PTS: 1 DIF: Synthesis REF: 331 | 333

Hard copy books - Available only in Australia

Number of products returned: 1 to 4 records of 4

An Introduction to Marine Studies 2nd Ed

Price: $77.00

Suitable for NSW Marine and Aquaculture and Qld Aquatic Practices Syllabi

National Powerboating Workbook 9th Edition

Price: $23.00

Suitable for 2-3 day boat licence course or 10 week school program. 1000 available.

Snorkelling workbook 6th Edition

Price: $18.00

Suitable for pool or open water school 8 week or weekend inservice programs. 320 available.

Safe Boating in Queensland 6th Edition

Price: $15.00

Out of Stock

Available Allstate Boating Licencing OR Ecopy Campion Ed see link below

Downloadable files with lifetime pay only once school/college licence. NOTE MANY OF THE BOOKS THAT WERE HERE ARE NOW IN THE FREE PUBLICATIONS SECTION

Number of products returned: 1 to 30 records of 30

F 01P Marine Science 3rd Ed

Price: $330.00

Downloadable pdf sold with school licence

F 46PP Oceanography powerpoints

Price: $330.00

Zip file with 36 power points for 2019 Qld Marine Science Syllabus

F 02P Marine Science answers

Price: $77.00

Downloadable pdf sold with school licence

F 48PP Marine biology powerpoints

Price: $330.00

Zip file with 32 power points for 2019 Qld Marine Science Syllabus

F 34P An Introduction to Marine Studies 2nd Edition

Price: $330.00

Downloadable pdf sold with school licence

F 35P Introduction to Marine Studies Teacher's Guide

Price:$110.00

On Sale: $77.00

Downloadable pdf sold with school licence

F 30P National powerboating workbook

Price: $330.00

Downloadable pdf sold with school licence

F 31P National powerboating worksheets

Price: $11.00

Downloadable pdf sold with school licence

F 32.1P National powerboating worksheet answers

Price: $77.00

Downloadable pdf sold with school licence

F 16P Snorkelling workbook

Price: $330.00

Downloadable pdf sold with school licence

F 17P Snorkelling worksheets

Price: $11.00

Downloadable pdf sold with school licence

F 18P Snorkelling worksheet answers

Price: $77.00

Downloadable pdf sold with school licence

F 09P Safe Boating in Queensland

Price: $15.00

Out of Stock

Available only from Campion Education - see link below

F 06P Navigation workbook

Price: $110.00

Downloadable pdf sold with school licence

F 07P Navigation worksheets

Price: $11.00

Downloadable pdf sold with school licence

F 08P Navigation worksheet answers

Price: $77.00

Downloadable pdf sold with school licence

F 10P Navigation and communications workbook

Price: $110.00

Downloadable pdf sold with school licence

F 11P Navigation and communications worksheets

Price: $11.00

Skyrim special edition not full screen. Downloadable pdf sold with school licence

F 12P Navigation and communications worksheet answers

Price: $77.00

Downloadable pdf sold with school licence

F 28P Safe Surfing workbook

Price: $110.00

Downloadable pdf sold with school licence

F 29P Safe Surfing worksheets

Price: $11.00

Downloadable pdf sold with school licence