This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Polychaetes are the most successful worm phyla, being found in terrestrial, aquatic, and marine ... (Read 80 times)

K@

  • Hero Member
  • *****
  • Posts: 608
on: Aug 22, 2018

Polychaetes are the most successful worm phyla, being found in terrestrial, aquatic, and marine
  environments. Indicate whether the statement is true or false.



Question 2

What comprises an arthropod's exoskeleton?
  a. Keratin
  b. Spicules
  c. Chitin
  d. Bone



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gstein359

  • Sr. Member
  • ****
  • Posts: 293
Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: F
Nematodes are considered the most successful phylum of the worms. Most roundworms are free-living
and microscopic. Information can be found in the section The Worm Phyla Are the Link to Advanced
Animals.



Answer to Question 2

ANS: C
An exoskeleton is a strong yet lightweight external covering. It provides support and protection to
arthropods. Chitin is a nitrogen-rich carbohydrate that is strengthened by calcium carbonate.
Information can be found in the section Advanced Invertebrates Have Complex Bodies and Internal
Systems.



K@

  • Member
  • Posts: 608
Reply 2 on: Aug 22, 2018
Thanks for the timely response, appreciate it

6ana001

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

An example of anatomical homology: homologous structures found in vertebrates. An example of anatomical homology: homologous structures found in vertebrates.
A recent study found that female baboons that groom each other are more likely to come to each other A recent study found that female baboons that groom each other are more likely to come to each other
Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary. Pacific hagfish at 150 meters depth, California, Cordell Bank National Marine Sanctuary.
Toussaint L’Ouverture leads a revolt of slaves against the French in Haiti—the first and only major Toussaint L’Ouverture leads a revolt of slaves against the French in Haiti—the first and only major
On May 15, 1916, after deliberating for one hour, an all-white jury in Waco, Texas, found seventeen- On May 15, 1916, after deliberating for one hour, an all-white jury in Waco, Texas, found seventeen-
Video: Introduction to Insulin

For a complete list of videos, visit our video library