This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What period of Earth's geologic history saw a dramatic increase in life? a. Cretaceous b. ... (Read 123 times)

crobinson2013

  • Hero Member
  • *****
  • Posts: 535
on: Jul 27, 2018
What period of Earth's geologic history saw a dramatic increase in life?
 
  a. Cretaceous
  b. Devonian
 c. Jurassic
 d. Tertiary
 e. Cambrian

Question 2

Which describes the direct change in genetic information of a cell?
 
  a. chromosome
 b. mutation
 c. evolution
 d. natural selection
  e. heredity


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jaygar71

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 27, 2018
Answer to Question 1

e

Answer to Question 2

b


crobinson2013

  • Member
  • Posts: 535
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

parshano

  • Member
  • Posts: 333
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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 oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

These species are all at risk of extinction. Species with “slow” life-h These species are all at risk of extinction. Species with “slow” life-h
season of life season of life
The Workout (Primary Conditioning Period) The Workout (Primary Conditioning Period)
Heaven or earth? Heaven or earth?
Increase in Surface Area by Mechanical Weathering Increase in Surface Area by Mechanical Weathering
Precession of Earth Precession of Earth
Video: Hormonal regulation of blood pressure - RAA system

For a complete list of videos, visit our video library