Author Question: The first Homo sapiens appeared between _________ years ago. a. 4 million and 5 million b. 1 ... (Read 104 times)

lak

  • Hero Member
  • *****
  • Posts: 546
The first Homo sapiens appeared between _________ years ago.
 
  a. 4 million and 5 million
  b. 1 million and 2 million
 c. 300,000 and 500,000
 d. 100,000 and200,000

Question 2

Among chordates, early brains have _________ than later developing brains.
 
  a. larger cerebellums
 b. more convoluted cortices
 c. larger olfactory bulbs
 d. smaller cerebellums and less convoluted cortices



laurnthompson

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

d

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

For a complete list of videos, visit our video library