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Lab Pro > Parasites > Flashcards

Parasites Flashcards

1
Q

Symbiosis

A

living together

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2
Q

Short-term relationship where one being benefits at the expense of the other

A

Predator/Prey

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3
Q

The smaller member of the relationship is mechanically carried about by the larger

A

Phoresis

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4
Q

Symbiotic relationship where both organisms benefit

A

Mutualism

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5
Q

One being benefits and the other neither benefits nor is harmed

A

Commensalism

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6
Q

An association exists between two organisms of Different Species in which one member Lives On or In and at the Expense of the other Member and May Cause Harm

A

Parasitism

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7
Q

Smaller organism of a different specie that lives on or in and at the expense of a larger organism called the host

A

Parasite

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8
Q

May be caused by a parasite within the body

A

Infection

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9
Q

On the body or in the environment

A

Infestation

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10
Q

Parasite that lives outside the body of the host

A

Ectoparasite

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11
Q

Parasite that lives inside the host

A

Endoparasite

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12
Q

Host’s expense may be (3 things) and host’s expense id determined by (3 things)

A

Trivial, substantial, unbearable

Overall health of host, number of parasites present, degree of damage done

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13
Q

Condition in which parasites of different species infect/infest the host

A

Multi-parasitism

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14
Q

Excessive parasitization of the same species

A

Superparasitism

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15
Q

When a parasite is present and potentially pathogenic but the animal shows no clinical signs

A

Parasitasis

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16
Q

When a parasite is present on or within the host and clinical signs are present

A

Parasitosis

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17
Q

When a parasite wanders from it’s usual site of infection into an organ or location in which it doesn’t normally live

A

Erratic or Aberrant parasite

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18
Q

When a parasite occurs in a host that it normally does not live

A

Incidental parasite

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19
Q

“Free living” (non parasitic in nature) can become parasitic in certain hosts

A

Faculative parasite

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20
Q

Parasite that must lead a parasitic existence. These are not capable of leading a free living existence

A

Obligatory parasite

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21
Q

Parasite that does not have to live on ot in a host but must make short frequent visits to obtain nourishment

A

Periodic parasite

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22
Q

Living creatures or objects that are not parasites but may be mistaken for parasites

A

Pseudoparasite

23
Q

Parasite with a narrow host range

A

Stenoxenous

24
Q

Parasite with a broad host range

A

Euryxenous

25
Q

Any disease or parasite that may be transmitted from animal to humans

A

Zoonosis

26
Q

Every parasite has at least one ____ host and may have one or more ___ hosts

A

definitive, intermediate

27
Q

Host that harbors the adult, sexual, or mature stages of the parasite

A

Definitive host

28
Q

Host that harbors the larval, juveile, immature or asexual stages of the parasite

A

Intermediate host

29
Q

how do parasites reproduce? (3)

A

Eggs, live young, dividing into two identical pars

30
Q

Life cycle where the juvenile form of the parasite can infect the same host it came from

A

Direct life cycle

31
Q

Example of Direct life cycle

A

Roundworms

32
Q

In this life cycle, this immature form must pass through a different type of host before it can re-enter and infect the host it came from

A

Indirect life cycle

33
Q

Example of Indirect life cycle

A

Heartworms, Dipylidium caninum, flukes

34
Q

Intermediate host where no life changes occurs

A

Transport host

35
Q

Example of transport host

A

Rodent can transport roundworms to cats and dogs

36
Q

2 Parasites that take a tracheal migration

A

Toxocara canis, Ancylostoma caninum

37
Q

Time interval between when the parasite enters the host and the subsequent form of the parasite can be recovered from the host

A

Prepatent period

38
Q

Infection to Detection

A

Prepatent period

39
Q

Prepatent period for heartworm

A

6 months

40
Q

Prepatent period for whipworms

A

3 months

41
Q

Represents the time from when the parasiteenters the host and the onset of clinical signs or symptoms of disease

A

Incubation period

42
Q

Round in cross section, longer than wide, unsegmented, variety of lengths

A

Nematodes

43
Q

Flat worms that are segmented, head usually has suckers or muscular grooves that enable it to attach itself to the animal’s intestines, each segment has it’s own reproductive organs, have no digestive system

A

Cestodes

44
Q

Flat, leaf-shaped, unsegmented worms that look like leeches, have suckers, hooks, or clam-like appendages which they attach themselves to the hosts organs

A

Trematodes

45
Q

This parasite generally does not cause serious damage in dogs and cats unless found in high numbers

A

Flukes

46
Q

Joint footed

A

Arthropods

47
Q

Have antennae, compound eyes, and body, many have wings

A

Insects

48
Q

Fleas and lice are ___?

A

Insects

49
Q

Carnivorous parasites that feed on tissue and blood

A

Arachnids

50
Q

Ticks and mites are ___?

A

Arachnids

51
Q

How many species of protozoans

A

over 450,000

52
Q

What is protozoa composed of?

A

nucleus and cytoplasm

53
Q

Example of protozoa

A

Giardia

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