Roundworms Quiz
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Roundworms can infest the human gut by living, eating, and reproducing in it. They don't often show any direct symptoms, but they multiply in numbers in the gut. This quiz will find out what you know about them.
Questions and Answers
- 1.
Roundworms are part of what phylum?
- A.
Annelida
- B.
Echinodermata
- C.
Nematoda
- D.
Cnidaria
Correct Answer
C. NematodaExplanation
Roundworms belong to the phylum Nematoda. This phylum includes a vast number of species of worms that are characterized by their cylindrical body shape and unsegmented bodies. Roundworms can be found in various habitats, including soil, freshwater, and marine environments. They play important roles in ecosystems as decomposers, parasites, and prey for other organisms.Rate this question:
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- 2.
What is their type of symmetry?
- A.
Bilateral
- B.
Radial
- C.
Asymmetrical
Correct Answer
A. BilateralExplanation
The correct answer is bilateral. Bilateral symmetry refers to the arrangement of body parts in such a way that there is a distinct left and right side, which are mirror images of each other. This type of symmetry is commonly found in organisms with a distinct front and back, such as humans. Radial symmetry, on the other hand, refers to the arrangement of body parts around a central axis, like a starfish. Asymmetrical symmetry refers to the absence of any particular symmetry in the organism's body plan.Rate this question:
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- 3.
What is their type of reproduction?
Correct Answer
SexualExplanation
The correct answer is sexual because sexual reproduction involves the fusion of gametes from two parents, resulting in offspring that inherit a combination of genetic traits from both parents. This type of reproduction allows for genetic diversity and variation among the offspring, which can be advantageous for survival and adaptation to changing environments.Rate this question:
- 4.
How many layers of tissues does it have and what are they?
- A.
2; Endoderm and Ectoderm
- B.
1; Endoderm
- C.
3: Endoderm. Ectoderm and Mesoderm
- D.
2; Ectoderm and Mesoderm
Correct Answer
C. 3: Endoderm. Ectoderm and MesodermExplanation
The correct answer is 3: Endoderm, Ectoderm, and Mesoderm. This answer suggests that the organism in question has three layers of tissues: the endoderm, which forms the innermost layer and gives rise to the digestive and respiratory systems; the ectoderm, which forms the outermost layer and gives rise to the skin and nervous system; and the mesoderm, which forms the middle layer and gives rise to the muscles, bones, and circulatory system.Rate this question:
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- 5.
What is the most common roundworm parasiteof humans in the United States?
- A.
Hookworms
- B.
Crayfish
- C.
Tapeworm
- D.
Pinworm
Correct Answer
D. PinwormExplanation
Pinworm is the most common roundworm parasite of humans in the United States. Pinworms are small, white worms that infect the intestines and cause an itchy sensation around the anus. They are easily transmitted through contaminated food, water, or surfaces. Pinworm infections are common, especially in children, and can be treated with medication.Rate this question:
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- 6.
What is a roundworms body type?
- A.
Psuedocelum
- B.
Coelom
- C.
N/a
- D.
Acoelomates
Correct Answer
A. PsuedocelumExplanation
A roundworm's body type is characterized by having a pseudocoelom. A pseudocoelom is a fluid-filled body cavity that is not completely lined by mesoderm. This body cavity provides space for organs and allows for movement and flexibility. Roundworms, also known as nematodes, have a cylindrical body shape and a pseudocoelom that serves various functions, including digestion, reproduction, and circulation of nutrients. This body type is different from coelomates, which have a true coelom, and acoelomates, which lack a body cavity altogether.Rate this question:
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- 7.
Name one organ found in a Roundworm.
Correct Answer
Reproductive
nervous
heartExplanation
The question asks for one organ found in a Roundworm, and the correct answer provides three options: reproductive, nervous, and heart. Roundworms, also known as nematodes, have a complete digestive system, reproductive organs, a simple nervous system, and a tubular heart. Therefore, all three options are correct as they represent organs that can be found in a Roundworm.Rate this question:
- 8.
How many openings does a roundworm have?
- A.
1; mouth and anus
- B.
2; seperate mouth and anus
- C.
1; mouth
- D.
No openings
Correct Answer
B. 2; seperate mouth and anusExplanation
Roundworms, also known as nematodes, have two separate openings for ingestion and excretion. This means they have a distinct mouth for feeding and an anus for eliminating waste. Having separate openings allows for efficient digestion and elimination processes in roundworms.Rate this question:
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- 9.
Describe the reproduction of a roundworm.
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Current Version
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Mar 21, 2023Quiz Edited by
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Apr 30, 2010Quiz Created by
Em143
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