Two birds are fed different types of bird seed to determine which type causes the bird to gain more weight. Which of the following is an experimental error?
The birds are different species.
The birds are allowed to eat all be seed they wanted.
The birds are exposed to different amounts of light and heat.
D All of the above.
No controls are mentioned in the design.

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

personal, she chose to do it.

is there any options? maybe im just not seeing them but i need the options to

-love shrooms

no starving yourself won't it will make you lose more weight what you need to do is find out what foods make you gain weight like bread and meats with fat on