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
Natasha_Volkova [10]
3 years ago
7

What needed to happen before life could exist on Earth?

Biology
1 answer:
Dmitrij [34]3 years ago
3 0

Answer:

The condition of the Earth had to become favourable before it could support any form of life.

The formation of the different layers around the earth like the ozone layer was necessary before life could originate. Primitive species such as some prokaryotes were able to live in hydrothermal conditions during the initial times. With the passage of time, as the concentration of oxygen increased due to photosynthetic prokaryotes, situations became favourable for eukaryotic organisms to arise.

You might be interested in
How does the temperature of the sea, wind speeds and moisture in the air affect Hurricane Formation?
vitfil [10]

Answer: Because it is the interaction of warm air and warm seawater that spawns these storms, they form over tropical oceans between about 5 and 20 degrees of latitude. At higher altitudes, water vapor starts to condense into clouds and rain, releasing heat that warms the surrounding air, causing it to rise as well.

Explanation: I hope this helps! :)

5 0
3 years ago
The absorptive effectiveness of the small intestine is enhanced by increasing the surface area of the mucosal lining. Which of t
ser-zykov [4K]

Answer:

Option B

The plicae circulares, villi, and microvilli

Explanation:

The plicae circulares are the folds of mucous membrane on the inside of the small intestine. They are covered with tiny hair-like structures called the villi, and microvilli. The purpose of those folds is to increase the surface area for the absorption of food nutrients to take place in the small intestine before the food finally moves on to the large intestine for excretion.

The tiny hair-like projections (villi, and microvilli) further increase the surface area available for nutrient absorption by providing extra surfaces in which the nutrients can diffuse into the small intestine through.

This makes option B correct.

7 0
3 years ago
BRAINLIEST A scientist notes that some individual fish survive better in low-oxygen environments than others of the same species
Scorpion4ik [409]

Answer:

(C) The differences arose through genetic mutation. Individual 1's is neutral, 2's is helpful, and 3's is harmful.

Explanation:

Hope this helps

7 0
3 years ago
Which factor makes enzymes well-suited to the role of catalyst in a biochemical reaction?
Sliva [168]

Answer: Either B or D

Explanation:

8 0
3 years ago
Read 2 more answers
Give some examples of rocks that would be formed through the process depicted in the figure above.
lesantik [10]
<span>Some examples are slate and gneiss.











</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following describes asexual reproduction? two parent organisms and genetic exchange one parent organism and no egg
    10·2 answers
  • Which characteristics describe the troposphere? Select two options.
    15·1 answer
  • Which of these is evidence of global warming?
    13·2 answers
  • Sexual reproduction has never been observed in which type of fungus
    13·1 answer
  • In producing beer and wine, humans have exploited the microbial ability to ferment sugar to alcohol. The microbes responsible fo
    14·1 answer
  • Science differs from other disciplines, such as history and the arts, because science relies on ?
    5·2 answers
  • According to the phylogenetic tree, which two phyla are most closely related?
    13·2 answers
  • 2. Why are humans considered animals?
    15·1 answer
  • What is oxidation?
    6·2 answers
  • Small fishes, squid, and sharks are ______ ,but zooplankton are not​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!