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
kipiarov [429]
3 years ago
11

Write a short essay (not more than 5 sentence ) on how you think life began on earth​

Biology
1 answer:
Snezhnost [94]3 years ago
7 0

Answer:

The earliest known life-forms are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 Gya (billion years ago), relatively soon after the oceans formed 4.41 Gya, and not long after the formation of the Earth 4.54 Gya.

Explanation:

You might be interested in
This is a DNA fingerprint exhibiting samples from a victim, two suspects, and the crime scene. Which of these DNA fragments is c
alekssr [168]

Answer:

B. (The second row)

Explanation:

8 0
3 years ago
Which of the following is a product of respiration resulting from the breaking of carbon-carbon bonds?
4vir4ik [10]

Answer:

Carbon Dioxide

Explanation:

Its what we breathe out.

3 0
2 years ago
What causes sun spots ?
evablogger [386]
The UV rays cause sun spots due to reaction from the radiation.
6 0
3 years ago
Read 2 more answers
If green plant cells are incubated in the presence of CO2 molecules containing radioactive carbon atoms, the fate of the carbon
stellarik [79]

Answer:

  1. Glycine
  2. Ribulose 1,5-bisphosphate
  3. 3-phosphoglycerate
  4. Glyceraldehyde 3-phosphate.
  5. Glucose
  6. Sucrose

Explanation:

The glycine, among other amino acids, helps to improve chlorophyll production and promotes the process of photosynthesis.  

<u>Calvin cycle</u>

During the carbon fixation phase, a CO² molecule combinate with a ribulose 1,5-bisphosphate to form 6-carbonated molecules, which will divide into two 3-phosphoglycerate molecules.  

During the reduction phase, NADPH donates its electrons to reduce 3-phosphoglycerate molecules, and turn them into glyceraldehyde 3-phosphate.

During the regeneration phase, a glyceraldehyde 3-phosphate molecule leaves the cycle and goes to the cytosol to form glucose. This step can be done when three CO² enter the cycle and produce six glyceraldehyde 3-phosphate molecules. One of them leaves the cycle to form glucose, while the other five are recycled.

<u>Cytosol: </u>

Once in the cytosol, glyceraldehyde 3-phosphate molecules are used to form glucose and fructose. These two molecules are the monosaccharides that form the sucrose.

Once sucrose is formed, it is transported from the photosynthetic tissues to different parts of the plant by the phloem.  

3 0
3 years ago
Which of the following is true of conifers?
cricket20 [7]
"<span>Female cones produce pollen that is trapped by the male cones’ scales" is the one among the following choices given in the question that is true of conifers. The correct option among all the options that are given in the question is the fourth option or the last option. I hope the answer helps you.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • How does the synthesis of melanin by melanocytes help these cells with their major function in skin?
    6·1 answer
  • Most health problems occur at the same rate for men and women true or false
    11·2 answers
  • Do humans use wetlands for shipping waterways
    11·1 answer
  • Fossilized remains of ancient organisms are considered by many scientists to be the strongest evidence that species change over
    13·2 answers
  • Which organisms can be treated with penicillin g (benzylpenicillin)? (select all that apply.)?
    14·1 answer
  • Can you think of some specific person or a group of people that would represent the Lorax in the world we live in
    11·1 answer
  • Which of the following is a developing nation? A) United States B) France C) Ethiopia D) Canada
    8·2 answers
  • According to the Focus on Neuroscience box on the adolescent brain, the amount of gray matter in the brain peaks at about age __
    12·1 answer
  • Based on your own investigation, what challenges do you think scientists face when classifying new organisms?
    9·1 answer
  • What might be the advantage of a thin leaf blade to the photosynthetic capacity of a leaf?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!