Karyotypes were first performed using blood samples taken from youngsters and adults. Later, a pre- birth process called amniocentesis was developed which allowed medical researchers to obtain samples of cells from extraembryonic fluid located in the amniotic sac, which surrounds an unborn child.
Introduction of burmese pythons to a local ecosystem can have grave consequences, as has been proven in Florida. Burmese pythons are skilled predators, and they are not easily killed by other animals. If introduced to a climate they can thrive in, they will start hunting local animals. With little to no predators capable of killing them, they will flourish because of plentiful food supply, and they will continue to increase in number. They will decrease the level of animals directly below them in the food chain, which will then increase the number of animals and plants that had previously been eaten by the python's new food.
Basically, don't mess with food chains! :)
Answer:
Wind, Insects/animals
Explanation:
Pollination is the process by which pollen grains move from the anther(male part) to the stigma( female part).
Pollination by wind is usually made possible with flowers who have feathery stigma. The feathery stigma is easily swayed by the wind which makes it possible for it to catch pollen grains in the air.
Pollination by insects/animals is made
Possible by a form of attraction which is usually in the form of conspicuous petals and a good odor. These features attracts the insects/animals to the flowers.
Chemical reactions occur when chemical bonds between atoms are formed or broken. If this is what you mean because the question is really confusing sorry :(
