Author Question: Which of these, if true, would support the claim that the ancestral cnidarians h (Read 760 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?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

For a complete list of videos, visit our video library