« previous next »

Author Question: Animals with dorsal nerve cords are called A) phyla. B) chordates. C) vertebrates. D) ... (Read 125 times)

Engineer

  • Hero Member
  • *****
  • Posts: 527
on: Jun 22, 2018
Animals with dorsal nerve cords are called
 
  A) phyla.
  B) chordates.
  C) vertebrates.
  D) mammals.
  E) amphibians.

Question 2

Evidence suggests that complex multicellular, water-dwelling organisms first appeared on earth
 
  A) in the early 1920s.
  B) 600 million years ago.
  C) 10 million years ago.
  D) 4 million years ago.
  E) 2 million years ago.


soda0602

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Mechanism of transport by a transporter, also called a carrier. Mechanism of transport by a transporter, also called a carrier.
Parts of the Hand Used in Palpation; Dorsal Surface Parts of the Hand Used in Palpation; Dorsal Surface
Animals Bullying Animals Bullying
Cross Section of Skin and Free Nerve Endings Cross Section of Skin and Free Nerve Endings
Testing motor function of cranial nerve VII - Show teeth Testing motor function of cranial nerve VII - Show teeth
Relationships among Jawed Vertebrates Relationships among Jawed Vertebrates
Video: Apicomplexan life cycle Animation

For a complete list of videos, visit our video library