This topic contains a solution. Click here to go to the answer

Author Question: Platyhelminthes were the first organisms to have: A) fully developed brain. B) notochord. C) ... (Read 109 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
Platyhelminthes were the first organisms to have:
 A) fully developed brain.
  B) notochord.
  C) central nervous system.
  D) All of these choices.

Question 2

Which statement is true with regard to internal waves?
 A) Internal waves usually move very fast.
  B) Internal waves form at the boundary between water layers of different densities.
  C) Internal waves are only generated by wind energy.
  D) Internal waves form at the junction between air and water.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kaykay69

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

C

Answer to Question 2

B




mydiamond

  • Member
  • Posts: 804
Reply 2 on: Aug 22, 2018
YES! Correct, THANKS for helping me on my review


epscape

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

For a complete list of videos, visit our video library