This topic contains a solution. Click here to go to the answer

Author Question: The earliest evidence of prehistoric life is the single-celled organisms called ______________. ... (Read 134 times)

future617RT

  • Hero Member
  • *****
  • Posts: 543
The earliest evidence of prehistoric life is the single-celled organisms called ______________.
 Fill in the blank(s) with correct word

Question 2

New material filling a mold forms a(n) ______________ of the original shell or bone.
 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

pocatato

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

cyanobacteria, or blue-green algae

Answer to Question 2

cast





 

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

For a complete list of videos, visit our video library