Multiple Choice
Nematodes are important in global ecosystems because
A) many nematodes are microscopic and contribute to substrate composition.
B) parasitic nematodes have multiple stages, affecting multiple species.
C) nematode numbers contribute a huge proportion to overall biomass.
D) scavenging nematodes contribute to nutrient cycling.
E) nematodes provide a nutrient base for other animals.
Correct Answer:

Verified
Correct Answer:
Verified
Q191: The diversification of insects about 450 million
Q192: Based on their body _, flatworms and
Q193: Refer to the figure. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5650/.jpg" alt="Refer
Q194: Which statement about flatworms is false?<br>A) Some
Q195: Which respiratory structure distinguishes insects from other
Q197: Which of the following are not lophotrochozoans?<br>A)
Q198: Which group of organisms supplies the best
Q199: Many flatworm species are parasitic.Which of the
Q200: Which statement(s) about chitons is true?<br>A) Their
Q201: Spiral cleavage in early development<br>A) occurs in