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

Author Question: What happened at the start of the Cambrian Period? A) the first oxygen-producing bacteria ... (Read 72 times)

schs14

  • Hero Member
  • *****
  • Posts: 569
on: Jul 27, 2018
What happened at the start of the Cambrian Period?
 
  A) the first oxygen-producing bacteria appeared
  B) the first dinosaurs appeared
  C) early humans first appeared
  D) an explosion of genetic diversity appeared, leading to the appearance of the first animals

Question 2

The weight of an object on the Moon is what fraction of the weight of the same object on Earth?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

princessflame2016

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

1/6


schs14

  • Member
  • Posts: 569
Reply 2 on: Jul 27, 2018
:D TYSM

komodo7

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Olenoides erratus from the Mt. Stephen Trilobite Beds (Middle Cambrian) near Field, British Columbia Olenoides erratus from the Mt. Stephen Trilobite Beds (Middle Cambrian) near Field, British Columbia
Staph Aureus bacteria Staph Aureus bacteria
The retrograde amnesia and anterograde amnesia associated with a concussion-producing blow to the ... The retrograde amnesia and anterograde amnesia associated with a concussion-producing blow to the ...
A Bulk Recipe for Bacteria A Bulk Recipe for Bacteria
Percent of oxygen in the atmosphere versus altitude. Percent of oxygen in the atmosphere versus altitude.
At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ... At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ...
Video: Segmentation and migrating motility complexes & Gastroileal reflex

For a complete list of videos, visit our video library