Author Question: Which of these, if true, would support the claim that the ancestral cnidarians h (Read 761 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?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

For a complete list of videos, visit our video library