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Zoology > Final Exam > Flashcards

Final Exam Flashcards

1
Q

5 chordate characteristics

A
  • notochord
  • dorsal tubular nerve cord
  • pharyngeal pouches and slits
  • endostyle or thyroid gland
  • post anal tail
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2
Q

In most annelids the coelom is filled with fluid that helps act as a __ skeleton

A

Hydrostatic

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3
Q

In terms of body cavities annelids are typically __ while nematodes are typically __

A
  • coelomates

* pseudocoelomates

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4
Q

After deep sea diving on an exploration you find an unknown worm what is a certain indicator that the animal belongs to the phylum sipuncula and not phylum annelida

A

Lack of segmentation

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5
Q

Each internal compartment of an annelid is lined with

A

Peritoneum, a layer of mesodermal epithelium

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6
Q

You decide to wake up early in the morning to watch the early birds you notice a robin attempting to pull an earthworm from its burrow you notice it’s having trouble why might the robin be having trouble

A

The earthworms setae are grabbing the soil and preventing the worm from being pulled out

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7
Q

Beard worms (sibinoglinids) have a mutualistic relationship with

A

Chemoautotrophic bacteria

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8
Q

In annelids segments are added to the organism in a specific way the newest segments are added just in front of the

A

Pygidium (section that contains the anus)

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9
Q

In front of you is a worm you notice that there are only longitudinal muscles what phylum does this worm most likely belong to

A

Nematoda

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10
Q

Soil is overly abundant with calcium since earthworms primarily consume the nutrients within soil how do they deal with the excess calcium

A

There are calciferous glands along the esophagus that reduce the calcium ion concentration in the blood and regulate the acid base balance in body fluids

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11
Q

Chelicerate Arthropods possess

A

Pedipalps and chelicerae

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12
Q

How do spiders consume their prey

A

Food is partly digested externally and the nutritive juices are sucked into the stomach

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13
Q

Daddy long legs (opiliones) are most closely related to the true spiders (class araneae) and have the most potent venom of all the chelicerates

A

False

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14
Q

Spiders break through the use of a __ or primitive tracheae

A

Book lungs

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15
Q
  1. Oral papillae can expel slime for defense
  2. Ever since pharynx for food capture/trunk is not metameric but has 30-100 superficial rings
  3. Retractile head with circlets of spines and a retractile proboscis
  4. Horsehair worms
  5. Can exhibit cryptobiosis “water bears”
A
  1. Onychophora
  2. Priapulida
  3. Kinoryhncha
  4. Nematomorpha
  5. Tardigrada
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16
Q

The segments of crustaceans are covered with a dorsal plate that is known as an __ and a central plate that is known as an __

A
  • tergum

* sternum

17
Q

Since the hemolymph of crustaceans leaves the heart by arteries why is it considered and open rather than a closed system

A

The hemolymph flows through the hemocoel and returns via venous sinuses rather than enclosed veins

18
Q

What is the function of the green glands in the crayfish

A

The green glands take part in salt balance and excreting wastes. They form dilute, low salt urine

19
Q

The photoreceptors cells in crustacean compound eye are called

A

Ommatidia

20
Q

The oldest ancestral and most widely occurring crustacean larva is

A

The nauplius

21
Q

Insect legs are attached to the

A

Thorax with one pair on the prothorax, mesothorax, and metathorax

22
Q
  1. Egg - nymph - adult
  2. Bud like growths as instars that develop into wings
  3. Stonefly and dragonfly metamorphosis
  4. Complete metamorphosis
  5. Egg - larva - pupa - adult
  6. Approx 88% of insect species undergo this type
A
  1. Hemimetabolous
  2. Hemimetabolous
  3. Hemimetabolous
  4. Holometabolous
  5. Holometabolous
  6. Holometabolous
23
Q

Most accurate representation for the decision making process of a bee hive

A

Democracy

24
Q

Functions of water vascular system

A 
Excretion
Locomotion 
Food gathering 
Respiration 
NOT REPRODUCTION
25
Q

The common name for the chaetognaths is the __ worm

A

Arrow

26
Q

What echinoderm is a lot more active than any other echinoderm

A

Brittle star

27
Q

Echinoderm classes (week 14)

A
  • asteroidea
  • ophiuroidea
  • echinoidea
  • holothuroidea
  • crinoidea
28
Q

Malpighian tubules

A

Blind tubules opening into the hindgut of nearly all insects and some myriapods and arachnids, and functioning primarily as excretory organs.

Zoology (4 decks)

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