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

Author Question: The first birds and mammals appeared 135 million years ago during the ____________________ period. ... (Read 69 times)

APUS57

  • Hero Member
  • *****
  • Posts: 571
on: Jul 18, 2018
The first birds and mammals appeared 135 million years ago during the ___________________ _ period.
 Fill in the blank(s) with correct word

Question 2

The ___________________ _ in the atmosphere filters out the ultraviolet light from the sun that is harmful to life.
 Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 18, 2018
Answer to Question 1

Jurassic

Answer to Question 2

ozone


APUS57

  • Member
  • Posts: 571
Reply 2 on: Jul 18, 2018
:D TYSM

dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Some male birds and mammals congregate in communal courting grounds called leks. Some male birds and mammals congregate in communal courting grounds called leks.
Detail of the Chinese-style gate of Nishi Hongan-ji in Kyoto; Momoyama period; National Treasure Detail of the Chinese-style gate of Nishi Hongan-ji in Kyoto; Momoyama period; National Treasure
The Last 10,000 Years of Greenhouse Gas Concentrations The Last 10,000 Years of Greenhouse Gas Concentrations
Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period
Nebamun Hunting Birds In The Marshes Nebamun Hunting Birds In The Marshes
Video: Morphology of a tomato plant

For a complete list of videos, visit our video library