Author Question: Which of these, if true, would support the claim that the ancestral cnidarians h (Read 753 times)

hummingbird

  • Sr. Member
  • ****
  • Posts: 324
Which of these, if true, would support the claim that the ancestral cnidarians had bilateral symmetry?
1.    Cnidarian larvae possess anterior-posterior, left-right, and dorsal-ventral aspects.
2.    Cnidarians have fewer Hox genes than bilaterians.
3.    All extant cnidarians, including Nematostella, are diploblastic.
4.    β-catenin turns out to be essential for gastrulation in all animals in which it occurs.
5.    All cnidarians are acoelomate.
A) 1 only
B) 1 and 4
C) 2 and 3
D) 2 and 4
E) 4 and 5



geoffrey

  • Hero Member
  • *****
  • Posts: 880

Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

hummingbird

  • Sr. Member
  • ****
  • Posts: 324

 

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

For a complete list of videos, visit our video library