Ch. 30 Lab Manual Flashcards
1
Q
- Ecdysis is the process of _____________.
a. obtaining heat
b. releasing heat
c. molting
d. mating
A
molting
2
Q
- Presently, there are more than ___________ species of Arthropoda.
a. 1,000
b. 10,000
c. 100,000
d. 1,000,000
A
1,000,000
3
Q
- Members of phylum Nematoda live in which of the following environments?
a. Soil.
b. Freshwater and marine.
c. Within animals, as parasites.
d. All of the above.
e. B and C.
A
All of the above
4
Q
- Rich topsoil can contain more than how many nematodes per acre?
a. 1 thousand.
b. 1 million.
c. 1 billion.
d. 1 trillion.
A
1 Billon
5
Q
- Unlike spiders, harvestmen, also known as “daddy longlegs,” have ____.
a. a cephalothorax and abdomen
b. a single pair of eyes
c. eight legs
d. fangs
A
a single pair of eyes
6
Q
- “Daddy longlegs” are ________________.
a. the most venomous animal to humans
b. venomous to most mammals, excluding humans
c. harmless; they do not even have fangs
d. not venomous to humans
A
not venomous to humans
7
Q
- Nematodes move in a thrashing fashion by using ______.
a. circular muscles
b. longitudinal muscles
c. cilia
d. mucus
A
longitudinal muscles
8
Q
- How many pairs of legs do most species of centipedes have?
a. 100
b. 50
c. 30
d. 60
A
30
9
Q
- Millipedes are ________________.
a. carnivorous
b. detritivorous
c. herbivorous
d. all of the above
e. B and C
A
B and C
10
Q
- The study of insects is called _____________.
a. etymology
b. biology
c. enthology
d. entomology
A
entomology
11
Q
- What type of coelom is found in the phylum Nematoda?
a. True coelom.
b. Pseudocoelom.
c. Acoelomate.
d. A and B, depending on the species of nematode.
A
Pseudocoelom
12
Q
- The grasshopper’s tympanic organs are responsible for _____.
a. hearing
b. breathing
c. excreting
d. mating
A
hearing
13
Q
- What makes ecdysozoans particularly vulnerable to prey?
a. Their small size.
b. Lack of camouflage.
c. Shedding of protective cuticle or exoskeleton.
d. Damage caused by ecdysis.
A
Shedding of protective cuticle or exoskeleton
14
Q
- Which of the following is a characteristic of a nematode?
a. Tapered at both ends.
b. Protective cuticle.
c. Circular muscles.
d. All of the above.
e. A and B.
A
A and B.
15
Q
- What feature of Ascaris distinguishes a specimen as male?
a. The presence of a rectum.
b. A length of 30 cm or more.
c. Posterior end is curved.
d. Coloration.
A
Posterior end is curved.