1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sladkaya [172]
4 years ago
6

Name one reason life was impossible on early earth

Biology
2 answers:
Anna007 [38]4 years ago
8 0
DINOSAURS ARE DA REASON
erastovalidia [21]4 years ago
4 0
Mainly because it was extremely hot at the beginning of Earth's time.
You might be interested in
The astronaut then measures the abundance of silicon on the new planet, obtaining the following results:
Reil [10]
<span>The astronaut then measures the abundance of magnesium on the new planet, obtaining the following results:
Isotope Abundance (%) Mass (amu)
24Mg 78.99 23.99
25Mg 10.00 24.99
26Mg 11.01 25.98

The atomic mass of magnesium for this planet = </span><span>24.31 amu</span>
8 0
3 years ago
The net annual primary productivity of a particular wetland ecosystem is found to be 8,000 kcal/m2 per year. If respiration by t
Yakvenalex [24]

Answer:

D.20,000

Explanation:

The Gross Annual Primary Productivity for the wetland ecosystem is the amount of carbon taken up by the aquatic producers through photosynthesis.  

Given that: Net Annual Primary Producer is 8,000 kcal/m2 per year, and respiration by the aquatic producers is 12,000 kcal/m2 per year, using the formula NPP = GPP – Respiration, we can determine the Gross Annual Primary Productivity of the wetland ecosystem.

NNP = 8,000 kcal/m2

Respiration = 12,000 kcal/m2

GPP = x

8,000 = x – 12,000 (NPP = GPP – Respiration)

Solve for x:

x = 8,000 + 12,000

x = 20,000 kcal/m2 per year

GPP = 20,000 kcal/m2 per year

3 0
3 years ago
What is regional terminology? a set of vocabulary words that healthcare workers use to refer to specific regions of the body a s
Andrei [34K]
Regional terminology is a set of vocabulary words that healthcare workers use to refer to specific regions of the body. The regions are based on basic structure and function of the body part.
5 0
3 years ago
Read 2 more answers
An animal study is being conducted to determine the effect of vitamin C on the incidence of common cold. The researcher gives on
Sav [38]
<h2>Placebo Effect</h2><h2>Explanation:</h2>
  • C<u>ontrol group </u>is Right Answer.
  • An animal study is being conducted to determine the effect of vitamin C on the incidence of common cold.
  • The researcher gives one group of rats the vitamin C pills and the other group of rats gets the ""dummy"" pill (placebo).
  • The rats that received the placebo would be called the <u>control group.</u>
  • Endogenous opioids, for example, endorphins and enkephalins, are normal pain alleviating synthetic substances created in the body.
  • Absense of pain because of the misleading impact is reliant upon the actuation of propositions endogenous opioids in the brain.

5 0
3 years ago
Do you weigh less on earth then a spaceship warming 800 Clement about the earth
Scorpion4ik [409]
No u dont because earth gravitational pull is stronger also it is a scientific law
6 0
4 years ago
Other questions:
  • Help please !!!!!!!!!!!!!
    6·1 answer
  • How does a salmon increase the chances of the survival in its species? A. It lays one egg B. It lays thousands of eggs C. It nut
    13·1 answer
  • All multicellular organisms begin as a progency or stem or tissue cell?
    8·1 answer
  • Risks in life are often misaligned with our perceptions of these risks. Describe why we fear flying in a plane, nuclear power pl
    12·1 answer
  • At various times, Cynthia, a 20 year-old college student, has been considered by her family and/or friends to be moody, high-str
    6·1 answer
  • What eats other organisms or make their own food?<br><br> Bacteria<br> Plants<br> Organisms
    14·1 answer
  • What did Darwin discover about plants from his phototropism experiments?
    6·1 answer
  • Which plant can help remove pollutants in rivers and lakes? Water pollutants in rivers and lakes can be removed by .
    6·2 answers
  • EXPERT HELP: EXPLAIN THE ANSWER
    14·2 answers
  • HELP ME PLEASE EMERGENCY ANSWER PLEASE CORRECTLY!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!