« previous next »

Author Question: What do all craniates have that earlier chordates did noWhat do all craniates ha (Read 462 times)

federox

  • Sr. Member
  • ****
  • Posts: 308
on: Aug 8, 2013
What do all craniates have that earlier chordates did not have?
A) brain
B) vertebrae
C) cartilaginous pipe surrounding notochord
D) partial or complete skull
E) bone


theo

  • Hero Member
  • *****
  • Posts: 698
Reply #1 on: Aug 10, 2013
Answer has to be D, trust me!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Male coho salmon exhibit two alternative life history strategies. “Jack†Male coho salmon exhibit two alternative life history strategies. “Jackâ€ÂÂ
In some species, dominant females have more surviving offspring that mature earlier indicating an ad In some species, dominant females have more surviving offspring that mature earlier indicating an ad
Adults in the Berlin Study of Aging show earlier declines on tests of nonverbal, fluid tasks (upper ... Adults in the Berlin Study of Aging show earlier declines on tests of nonverbal, fluid tasks (upper ...
Evolutionary Tree for Chordates Evolutionary Tree for Chordates
Video: Introduction to Spirometry

For a complete list of videos, visit our video library