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 77 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
Gracias!

momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Segregation according to resource factor among 40 species of British passerine birds. Segregation according to resource factor among 40 species of British passerine birds.
Life-history cube, a classification of fish, mammals, and altricial birds based on three dimensionle Life-history cube, a classification of fish, mammals, and altricial birds based on three dimensionle
Adolescence: 12 years or puberty to the beginning of adulthood. Adolescence: 12 years or puberty to the beginning of adulthood.
Embryonic Period Embryonic Period
Siri plans to retire in 18 years and would like to receive $10 000.00 per month for twenty ... Siri plans to retire in 18 years and would like to receive $10 000.00 per month for twenty ...
Representatives of major orders of placental mammals Representatives of major orders of placental mammals
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library