Jaslyn Villalona
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Practice test for Dr. Geiger Biology 2 Exam

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Jaslyn Villalona
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Exam 3 Practice Test

Frage 1 von 55

1

Which feature/trait do squid and octopus have that other members of phylum Mollusca, such as clams/oysters/snails, do not have?

Wähle eine der folgenden:

  • heterotrphy

  • bilateral symmetry

  • closed circulatory system

  • tissues

  • multicellularity

Erklärung

Frage 2 von 55

1

Which of the following is (are) unique to animals ?

Wähle eine der folgenden:

  • heterotrophy

  • flagellated gametes

  • nervous conduction and muscular movement

  • the structural carbohydrate, chitin

  • cells that have mitochondria

Erklärung

Frage 3 von 55

1

What is an important advantage to a closed circulatory system?

Wähle eine der folgenden:

  • quicker early development

  • improved movement/activity

  • development of coelom

  • development of tissues

Erklärung

Frage 4 von 55

1

Which of the following groups of insects do we think has the highest number of species?

(NOTE: over 400,000 species have been described so far in this group of insects)

Wähle eine der folgenden:

  • butterflies

  • flies

  • beetles

  • bees/wasps/ants

  • grasshoppers

Erklärung

Frage 5 von 55

1

Which of these, if true, would support the claim that the ancestral cnidarians had bilateral symmetry?

1.) Cnidarian larvae possess anterior-posterior, left-right, and dorsal-ventral sides/positions.

2.) Cnidarians have fewer Hox genes than bilaterians.

3.) All living cnidarians have both endoderm and ectoderm layers as embryos.

4.) All cnidarians are acoelomate.

Wähle eine der folgenden:

  • statements 2 & 4 only

  • statement 1 only

  • statements 2 & 3 only

  • statements 3 & 4 only

Erklärung

Frage 6 von 55

1

Which of the following is NOT a feature of chordates?

Wähle eine der folgenden:

  • pharyngeal slits/clefts

  • ecdysis (i.e., molting)

  • dorsal. hollow nerve cord

  • post-anal tail

  • notochord

Erklärung

Frage 7 von 55

1

Which of the following are the only living animals that descended directly from dinosaurs?

Wähle eine der folgenden:

  • snakes

  • birds

  • tuataras

  • lizards

  • crocodiles

Erklärung

Frage 8 von 55

1

What can ~ most amphibians do that humans cannot do?

Wähle eine der folgenden:

  • walk using legs

  • breathe through their skin

  • resist gravity with bony internal skeleton

  • have separate pulmonary circuit

  • breathe through lungs

Erklärung

Frage 9 von 55

1

Which 2 important features distinguish bony fish (e.g., goldfish, grouper) from cartilaginous fish (e.g., stingrays, sharks)?

Wähle eine der folgenden:

  • gill cover/operculum & post-anal tail

  • post-anal tail & swim bladder

  • dorsal, hollow nerve chord and gills

  • swim bladder & gill cover/ operculum

  • dorsal, hollow nerve chord & post-anal tail

Erklärung

Frage 10 von 55

1

Which of the following are the most abundant and diverse of living vertebrates?

Wähle eine der folgenden:

  • mammals

  • birds

  • insects

  • amphibians

  • ray-finned fishes

Erklärung

Frage 11 von 55

1

Do members of the phylum Cnidaria have a separate mouth and anus?

Wähle eine der folgenden:

  • Yes

  • No

Erklärung

Frage 12 von 55

1

In terms of numbers of species, which is the most successful group of animals?

Wähle eine der folgenden:

  • birds

  • mollusks

  • fishes

  • mammals

  • arthropods

Erklärung

Frage 13 von 55

1

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that...

Wähle eine der folgenden:

  • arthropods evolved before vertebrates did

  • ancestral arthropods must have been poorly adapted to aquatic life and thus experienced a selective pressure to invade land

  • arthropods have had more time to coevolve with land plants than vertebrates have had

  • extant terrestrial arthropods are better adopted to terrestrial life than are extant terrestrial vertebrates

Erklärung

Frage 14 von 55

1

Of the following organisms, which are amniotes ?

Wähle eine der folgenden:

  • egg-laying mammals only

  • amphibians

  • fishes

  • mammals

  • placental mammals only

Erklärung

Frage 15 von 55

1

Which of these characteristics added most to vertebrate success in relatively dry environments?

Wähle eine der folgenden:

  • the ability to maintain a constant body temperature

  • two pairs of appendages

  • a four-chambered heart

  • the shelled, amniotic egg

  • bony scales

Erklärung

Frage 16 von 55

1

What kind of symmetry do members of the phylum Porifera exhibit?

Wähle eine der folgenden:

  • bilateral symmetry

  • isohedral symmetry

  • radial symmetry

  • no symmetry

Erklärung

Frage 17 von 55

1

Some corals have photosynthetic organisms (i.e., zooxanthellae) living within their tissues. What benefit do these corals get from their photosynthetic 'house- mates"?

Wähle eine der folgenden:

  • sugars

  • CO2 (carbon dioxide)

  • prey items that the zooxanthellae capture

  • a safe place to live

Erklärung

Frage 18 von 55

1

What feature do cnidarians have that porifera do not have?

Wähle eine der folgenden:

  • multicellularity

  • sexual reproduction

  • hetertrophy

  • tissues

Erklärung

Frage 19 von 55

1

Which of the following terms describes an animal with a body cavity completely enclosed within mesoderm tissue?

Wähle eine der folgenden:

  • pseudocoelomate

  • quasicoelomate

  • coelomate

  • acoelomate

Erklärung

Frage 20 von 55

1

The presence of a swim bladder allows the typical ray-finned fish to stop swimming and still

Wähle eine der folgenden:

  • be highly maneuverable

  • effectively circulate its blood

  • use its own bladder as a respiratory organ

  • not sink

Erklärung

Frage 21 von 55

1

Which of the following features is NOT present in arthropods?

Wähle eine der folgenden:

  • molting of exoskeleton to grow

  • closed circulatory system

  • segmentation of body parts

  • open circulatory system

  • molting (i.e., replacement of "old" exoskeleton with new one)

Erklärung

Frage 22 von 55

1

Which of the following is not an insect?

Wähle eine der folgenden:

  • butterfly

  • bettle

  • ant

  • spider

  • bee

Erklärung

Frage 23 von 55

1

Acoelomate (i.e., no coelom) is a feature of chordates... true or false?

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 24 von 55

1

Which of the following organisms does NOT have a 4 chambered heart?

Wähle eine der folgenden:

  • crocidile

  • parrot

  • frog

  • opossum

  • platypus

Erklärung

Frage 25 von 55

1

A "complete digestive tract" differs from a gastrovascular cavity in that only the complete tract

Wähle eine der folgenden:

  • permits extracellular digestion

  • has teeth and tentacles to help with ingestion

  • uses its surface area for nutrient absorption

  • has specialized compartments

  • allows elimination of undigested waste

Erklärung

Frage 26 von 55

1

In humans, the first opportunity for ingested food to undergo enzymatic hydrolysis is in the

Wähle eine der folgenden:

  • mouth

  • stomach

  • liver

  • small intestine

  • large intestine

Erklärung

Frage 27 von 55

1

The brush border/microvilli of the epithelial cells lining the small intestine have a specific form. What is their function?

Wähle eine der folgenden:

  • clean the surfaces of the intestinal cells

  • promote movement of waste products

  • promote movement of chyme

  • nutrient absorption

  • waste excretion

Erklärung

Frage 28 von 55

1

The bile salts function in fat digestion by

Wähle eine der folgenden:

  • hydrolyzing fat molecules to glycerol and fatty acids

  • separating individual fat molecules from each other

  • dissolving fats in water

  • dispersing big droplets of fats to small droplets

  • triggering the secretion of pancreatic lipase

Erklärung

Frage 29 von 55

1

Increased glucose levels in blood, after a meal trigger

Wähle eine der folgenden:

  • glucagon release from pancreas

  • insulin release from the pancreas

  • secretin release from the duodenum

  • cholecystokinin release from the pancreas

  • activation of amylase in the blood

Erklärung

Frage 30 von 55

1

Glucagon, the pancreatic hormone, functions to

Wähle eine der folgenden:

  • stimulate hunger

  • inhibit activity in the small intestine

  • increase fat storage in fat cells

  • reduce glucose levels in the blood

  • stimulate the liver to release glucose

Erklärung

Frage 31 von 55

1

The fluid that moves around in the circulatory system of a typical arthropod is the

Wähle eine der folgenden:

  • intracellular fluid

  • interstitial fluid/hemolymph

  • blood plasma

  • digestive juices

  • cytosol

Erklärung

Frage 32 von 55

1

Corrected order of blood flow in human circulatory system:

Wähle eine der folgenden:

  • left ventricle, aorta, right ventricle, lungs, & systemic capillaries

  • left ventricle, right ventricle, aorta, systemic capillaries , & lungs

  • left ventricle, aorta, systemic capillaries , right ventricle, & lungs

  • left ventricle, aorta, lungs, systemic capillaries, right ventricle

Erklärung

Frage 33 von 55

1

Which of the following tissue types is incorrectly matched with its function?

Wähle eine der folgenden:

  • epithelial tissue- covers and lines organs and body cavities

  • muscle tissue- holds the tissues and organs in place

  • connective tissue- stores fat and provides flexibility

  • nervous tissue- processing and transmission of information

Erklärung

Frage 34 von 55

1

Heat exchange between an organism and its environment to maintain body temperature (thermoregulation) is achieved by

Wähle eine der folgenden:

  • radiation

  • conduction

  • convection

  • evaporation

  • all of the above

Erklärung

Frage 35 von 55

1

For blood flow in fish gills, net movement of oxygen from water into blood occurs only in the first half of the distance where blood and water are in close contact

Wähle eins der folgenden:

  • WAHR
  • FALSCH

Erklärung

Frage 36 von 55

1

The desert ant, which lives in the Sahara Desert, has several features and behaviors that allow it to live in such a harsh environment. These include all the following, except

Wähle eine der folgenden:

  • living in underground burrows that are much cooler than the above ground temperatures.

  • unusual enzymes that work optimally at extremely hot temperatures.

  • only leaving its burrows during the day to capture its prey items.

  • long legs that allow it to run very fast to capture its prey so it spends little time aboveground.

  • long legs which lift its body above the extremely hot desert sands.

Erklärung

Frage 37 von 55

1

Galapagos iguanas are the only iguana species that regularly spends time in saltwater, where they eat macroalgae growing on the submerged rocks. They manage to stay warm enough to swim in the very cold waters surrounding the Galapagos islands. They stay warm enough by all the following, except

Wähle eine der folgenden:

  • They gain heat via conduction by laying next to other iguanas that are warmer.

  • They gain heat via evaporation in their relatively large nasal (i.e., nose) cavities.

  • They gain heat via radiation from the sun shining down on them.

  • They gain heat via conduction from lying on the dark rocks on land.

Erklärung

Frage 38 von 55

1

A defining characteristic of birds

Wähle eine der folgenden:

  • is a four-chambered heart.

  • is that they build nests and care for their young.

  • are feathers.

  • is their having both a systemic circuit and a pulmonary circuit.

  • is endothermy.

Erklärung

Frage 39 von 55

1

The 4 characteristic features of chordates include all the following, except

Wähle eine der folgenden:

  • notochord.

  • dorsal hollow nerve cord.

  • post-anal tail.

  • pharyngeal slits/clefts.

  • bony or cartilaginous vertebral column.

Erklärung

Frage 40 von 55

1

Successful invasion of the land by tetrapods required all the following, except

Wähle eine der folgenden:

  • systems to prevent embryos from drying out.

  • system to prevent the whole-body desiccation.

  • lungs which were more efficient than fish gills to extract oxygen from the air.

  • redesigned heart and circulatory systems to support larger muscles.

  • legs to support the weight of the body.

Erklärung

Frage 41 von 55

1

A student in a general biology 2 class told their professor that they missed class the previous week because they had suffered an injury to their notochord. Is this possible?

Wähle eine der folgenden:

  • No, as the notochord is located within and protected by the rigid vertebral column containing calcium phosphate.

  • No, as human adults do not have a notochord.

  • Yes, as the notochord is made of cartilage which is not as rigid as bone.

  • Yes, as general biology 2 students very often suffer damage to their notochords because of poor posture when reading their textbooks.

  • Yes, as the notochord is not contained within or protected by the bony vertebral column.

Erklärung

Frage 42 von 55

1

How many different cell types are in the human body?

Wähle eine der folgenden:

  • ~50

  • ~200

  • 4

  • ~100

  • ~500

Erklärung

Frage 43 von 55

1

Is the human body’s response to excessively cold temperatures, shivering and vasoconstriction of blood vessels near the skin surface, voluntary or involuntary?

Wähle eine der folgenden:

  • voluntary

  • involuntary

  • It depends on the person

Erklärung

Frage 44 von 55

1

A true 4-chambered heart does not allow

Wähle eine der folgenden:

  • the mixing of blood from the systemic circuit with the pulmonary circuit.

  • the mixing of blood from the pulmonary circuit with the gill circuit.

  • the mixing of blood from the right side of the body with the left side of the body.

  • the mixing of blood from the systemic circuit with the gill circuit.

  • the mixing of blood from the right lung with the left lung.

Erklärung

Frage 45 von 55

1

Is the human body’s response to excessively hot temperatures, sweating and vasodilation of blood vessels near the skin surface, voluntary or involuntary?

Wähle eine der folgenden:

  • voluntary

  • involuntary

  • It depends on the person

Erklärung

Frage 46 von 55

1

Where do absorbed fats finally enter the blood?

Wähle eine der folgenden:

  • within chylomicrons in the lymph at the subclavian veins

  • from epithelial cells lining the small intestine into the hepatic portal vein

  • within chylomicrons in the lymph into the hepatic portal vein

  • within chylomicrons in the liver

  • from epithelial cells lining the small intestine into the hepatic portal artery

Erklärung

Frage 47 von 55

1

The body stores excess glucose as all the following, except

Wähle eine der folgenden:

  • glycogen in the pancreas

  • glycogen in the muscles

  • glycogen in the liver

  • fat in adipose tissue

Erklärung

Frage 48 von 55

1

Why is the protease pepsin released from cells in an inactive form?

Wähle eine der folgenden:

  • so it can reach very high concentrations within the cells

  • so that it can be produced constantly

  • so it does not break down proteins found within the cells

  • so it can be produced only when it is needed

  • so it can be more easily transported across plasma membranes

Erklärung

Frage 49 von 55

1

What would be an important consequence of losing all your alpha cells in your pancreas?

Wähle eine der folgenden:

  • inability to lower your blood glucose levels once they are > 90 mg/100ml

  • inability to raise your blood glucose levels once they are < 90 mg/100ml

  • inability to increase the pH of the chyme entering your duodenum

  • inability to decrease the pH of the chyme entering your duodenum

  • inability to use glucose as a source of energy in your cells

Erklärung

Frage 50 von 55

1

A very low level of glucose in the blood after a long period of fasting will cause

Wähle eine der folgenden:

  • activation of amylase in the blood.

  • pepsinogen release from chief cells in the stomach.

  • insulin release from the pancreas.

  • secretin release from the duodenum.

  • glucagon release from the pancreas.

Erklärung

Frage 51 von 55

1

What is meant by the term “essential” in reference to nutrients?

Wähle eine der folgenden:

  • They cannot be synthesized within the human body and need to be a part of the diet.

  • They are needed only during early developmental stages and are not needed once an organism reaches maturity.

  • They can only be synthesized by plants and therefore are not needed by animals.

  • They can only be synthesized by animals and therefore are not needed by plants.

  • They can be created from scratch/de novo within the human body from other organic molecules.

Erklärung

Frage 52 von 55

1

Which of the following is mismatched?

Wähle eine der folgenden:

  • O2 rich blood — arteriole

  • O2 rich blood — left ventricle

  • O2 poor blood — venule

  • O2 rich blood — pulmonary artery

  • O2 poor blood — right atrium

Erklärung

Frage 53 von 55

1

The following structures are involved in the vertebrate circulatory system: (1) veins, (2) arterioles, (3) capillaries, (4) venules, and (5) arteries. What is the correct order of blood flow once it leaves the capillary beds?

Wähle eine der folgenden:

  • 5, 2, 3, 4, 1

  • 1, 2, 3, 4, 5

  • 4, 1, 5, 2, 3

  • 4, 1, 2, 5, 3

  • 5, 2, 1, 4, 3

Erklärung

Frage 54 von 55

1

Why do arteries have thicker walls than veins have?

Wähle eine der folgenden:

  • to minimize the passage of molecules through the endothelial cells

  • to allow greater diffusion of amino acids and glucose

  • to allow greater diffusion of O2 and CO2

  • to tolerate the greater blood pressure found within the arteries

  • to maintain the volume of blood in the circulatory system

Erklärung

Frage 55 von 55

1

What is returned to the blood at the junction between the lymphatic system and the circulatory system?

Wähle eine der folgenden:

  • chylomicrons

  • BOTH fluid lost from the capillary beds and chylomicrons

  • fluid lost from the capillary beds

  • glucose and amino acids from digestion

Erklärung

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