Author Question: Mammals in the __________ group reproduce without a placenta. a. prototheria b. eutheria c. ... (Read 58 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
Mammals in the __________ group reproduce without a placenta.
 
  a. prototheria
  b. eutheria
  c. metatheria
  d. all of these

Question 2

About __________ mammal species exist today.
 
  a. 400
  b. 2,000
  c. 4,000
  d. 200



bigcheese9

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

Answer c

Answer to Question 2

Answer c



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

For a complete list of videos, visit our video library