The scientist who is said to have discovered all the four nitrogenous bases present in the DNA of all organisms is, Erwin Chargaff, an Austro-Hungarian biochemist who immigrated to the United States. Hope this helps!
The answer should be <span>single quotation marks</span>
37. Observation and scientific theory are both related. Because it needs hypothesis and experiment to be able to have an actual data to show.
For example:
If you want to know how a monggo seeds grow on a wet cotton. Then you should be preparing the needed things and perform the experiment. You need to observe to be able to get the scientific theory of how this experiment works. That’s how observation and scientific theory is related. They will always be together in science.
You forgot to show us a picture bro
there are two distinctions of genders in humans, one is biological and the other is socially constructed.
biologically, man and women are distinguish by the gonads, such are men posses Penis and and women have Vaginas. secondly, through penis men produces sperm which is necessary for fertilization, while women have ovum which is serves as the carrier of sperm and produces a new young ones after , sperm meets egg.
socially men and women are constructed as men are to face the social world while women have to care for the family and house.
