« previous next »

Author Question: What do the simplest vertebrates lack? a. jaws b. notochord c. central nervous system d. teeth ... (Read 104 times)

nelaaney

  • Hero Member
  • *****
  • Posts: 560
on: Aug 22, 2018

What do the simplest vertebrates lack?
  a. jaws
  b. notochord


 

c. central nervous system
  d. teeth
  e. skull



Question 2

What is an invertebrate chordate?
  a. A chordate that has lost its gill slits
  b. A chordate with an underdeveloped dorsal nerve system
  c. A chordate that has lost its notochord
  d. A chordate that has a backbone
  e. A chordate that evolved to become an invertebrate



joshbk44

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Aug 22, 2018
Answer to Question 1

a

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

nelaaney

  • Hero Member
  • *****
  • Posts: 560
Reply #2 on: Aug 22, 2018
Both answers were spot on, thank you once again


joshbk44

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Aug 22, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

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?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Digestive system. Digestive system.
The autonomic nervous system with its sympathetic and parasympathetic divisions The autonomic nervous system with its sympathetic and parasympathetic divisions
The Autonomic Nervous System The Autonomic Nervous System
Overview of the Solar System Overview of the Solar System
Solve the system of equations: Solve the system of equations:
Gen Bio 2 - Central Dogma Gen Bio 2 - Central Dogma
Video: Cardiac Cycle (Part 1 of 4)

For a complete list of videos, visit our video library