« previous next »

Author Question: The first Homo sapiens appeared between _________ years ago. a. 4 million and 5 million b. 1 ... (Read 105 times)

lak

  • Hero Member
  • *****
  • Posts: 546
on: Jun 22, 2018
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
Reply #1 on: Jun 22, 2018
Answer to Question 1

d

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

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

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr
The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old. The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old.
Toddler: 1–3 years. Toddler: 1–3 years.
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Three years old drawing Three years old drawing
Video: SNP Polymorphysim Microarray Chip - How to Test a Person's DNA

For a complete list of videos, visit our video library