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
Anton [14]
3 years ago
12

Define Nucleosynthesis and describe what it was like in the first few minutes after the Big Bang

Biology
1 answer:
In-s [12.5K]3 years ago
5 0

Answer:

Actually, in physical cosmology, Big Bang nucleosynthesis (or primordial nucleosynthesis) refers to the production of nuclei other than H-1, the normal, light hydrogen, during the early phases of the universe, shortly after the Big Bang. About first millisecond, the universe had cooled to a few trillion kelvins (1012 K) and quarks finally had the opportunity to bind together into free protons and neutrons. Free neutrons are unstable with a half-life of about ten minutes (614.8 s) and formed in much smaller numbers. The abundance ratio was about seven protons for every neutron. Before one neutron half-life passed nearly every neutron had paired up with a proton, and nearly every one of these pairs had paired up to form helium. By this time the universe had cooled to a few billion kelvins (109 K) and the rate of nucleosynthesis had slowed down significantly.

Explanation:

You might be interested in
A student found a grasshopper in their backyard and wanted to take it to school to show the teacher the next day. Thestudent put
Nat2105 [25]

Answer options:

  • The nucleus was unable to provide instructions for the other organelles in the cells.
  • The mitochondria were unable to undergo cellular respiration and could not produce energy for the cells to function.
  • The lysosomes were unable to remove waste from the cells.
  • The cell membrane was unable to allow substances to enter and exit the cells.

Answer:

  • The mitochondria were unable to undergo cellular respiration and could not produce energy for the cells to function.

Explanation:

Mitochondria are the site of aerobic respiration. This is the process that produces energy in the form of ATP. ATP provides energy for all cellular processes. Without this energy, the cell cannot carry out its functions and will quickly die.

Aerobic respiration requires a good supply of oxygen, which the grasshopper would not have had in a sealed container.

3 0
3 years ago
Define these terms: thermocline, halocline, pycnocline
serg [7]
Thermocline - <span>a steep temperature gradient in a body of water, that is marked by a layer above and below at which the water is at different temperatures.

halocline - </span><span> a subtype of chemocline caused by a strong, vertical salinity gradient within a body of water.

pycnocline - </span><span>a layer in an ocean or other body of water in which water density increases rapidly with depth.</span>
8 0
3 years ago
Ribosomes can be found on the surface of the endoplasmic reticulum and suspended in the cytoplasm. True or false
SpyIntel [72]
True ribosomes make protiens and are scattered across the cell. some are just attached to things
8 0
3 years ago
DNA wasn't definitively shown as the carrier of inheritance until which year?
Agata [3.3K]
It was not until the year of 1952!
6 0
3 years ago
What is the main function of xylem tissue in the plant transport system?
mario62 [17]
The main function of xylem tissue in the plant transport system is to transport water.

Answer: C) or the third option.
8 0
3 years ago
Other questions:
  • Which most direct controls the rate at which food is broken down to release energy
    14·1 answer
  • Which animals is attracted to magnets?<br> Please answer it fast!!
    7·1 answer
  • Which process is catalyzed by rubisco during the light-independent reactions of photosynthesis?
    7·2 answers
  • How do channel proteins assist cells in the process of diffusion
    11·1 answer
  • Which stage of cellular respiration yields the greatest number of atp molcules per glucose molecule? what is the name of this st
    14·1 answer
  • Please I need help! What effect do enzymes have on biochemical reactions?
    9·1 answer
  • How might the heat from a forest fire help certain gymnosperms reproduce?
    7·1 answer
  • Both proteins and complex carbohydrates are which of the following
    10·1 answer
  • The walls of the ventricles are thicker because the ventricles pump blood under higher pressure over greater distances. The wall
    6·1 answer
  • Which of the following structures is known as the power house or power generator of a cell?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!