« previous next »

Author Question: How many of the following can be used to distinguish a nematode worm from an ann (Read 639 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Aug 5, 2013
How many of the following can be used to distinguish a nematode worm from an annelid worm?
1.    type of body cavity
2.    number of muscle layers in the body wall
3.    presence of segmentation
4.    number of embryonic tissue layers
5.    shape of worm in cross-sectional view
A) one of these
B) two of these
C) three of these
D) four of these
E) five of these


camila

  • Hero Member
  • *****
  • Posts: 705
Reply #1 on: Aug 8, 2013
Answer has to be C, trust me!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Charlie

  • Hero Member
  • *****
  • Posts: 640
Reply #2 on: Oct 18, 2013
Wonderful, you were right, thank you so much.


« previous next »
 

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Adult Acorn Worm Adult Acorn Worm
Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw
Parasitic fish worm Parasitic fish worm
worm anatomy worm anatomy
Planaria worm (PNG; transparent) Planaria worm (PNG; transparent)
Anatomy of a Planaria worm Anatomy of a Planaria worm
Video: Contraction cycle of a sarcomere

For a complete list of videos, visit our video library