This largely depends on how well you condition the bettas before spawning, especially the female. If you try to spawn too early or do not feed her enough (in the two weeks before spawning, if she is eating everything you are offering you are not overfeeding) you will not get many eggs, maybe fifty or so. A well conditioned, fully grown female paired with an experienced male who looks after the eggs well may give you three hundred fry. A normal, well conditioned pair often lay 150 or so. Obviously it is silly to raise this many; it is best to wait until a week or so, cull everything obviously deformed or not growing, and then wait until six weeks and keep only the best to grow on. Not all of the eggs will survive. A good father will eat any egg that stops developing and becomes fungused, to protect the other eggs. However sometimes an inexperienced or confused male will spontaneously decide to eat the eggs or fry. If you can't afford to lose the spawn it is often wiser to remove the bubblenest, put it in a shallow container and float it in a heated tank. However, this does result in a lower hatch rate (50-60% as opposed to 80%.)
It really depends how big it is but normally around 42-61 at the most. :)
94 chromosomes, 47 pairs
It is common to have around 200 fry from a single spawning.
Flying fish lay thousand of eggs which they stick to floating objects in a spawning frenzy. As with all marine species that spawn, not many individuals survive to adulthood.
Mitosis
Mitosis
No, meosis is a process that ensures that the offspring will have the SAME number of chromosomes as their parents. Hope this helped!
Betta fish do not eat fish.
Many Thousands. Each spawning can be several hundred. They can spawn every month to six weeks. They are capable of spawning for around 2 years. You do the arithmetic.
If they are both in breeding condition a nest will be built and the female will usually be spawned out within a few hours. Following this, if she is not removed quickly she will be killed. If she is not in breeding condition and fails to show an interest in spawning she will be killed if she is not removed. A Male Betta will not suffer another Betta to be in its immediate vicinity. However they are peacfull with all other species and are often bullied in community tanks.
If you don't feed your betta for a whole day, then it will get starved, and probably die.
Thousands of eggs are laid at each spawning cycle.
Several thousand in one spawning.
Hundreds is typical although some will die young.