Natural selection<span> is one of the basic mechanisms of evolution, along with mutation, migration, and genetic drift. </span>Results of these processes is the survival and reproduction of organisms which is best suited for their current environment. Hope this answers the question.
Heat radiation.
This is the form of heat transfer that doesn’t need a medium to transfer through.
That’s how heat from the sun gets to earth, even though empty space is very cold.
The correct answer is Option: B) Implantation
Implantation is defined as the attachment of fertilized egg or blastocysts to the wall of uterus at the beginning of pregnancy. Occurrence of implantation ensures the women to be described as pregnant.
Other options are wrong.. e.g. Intercourse is only an act between a man and a woman and does not always result in a pregnancy. On the other hand menstruation has nothing to do witha women getting pregnant.
The answer is D.
Heterozygous individuals pass the dominant and recessive alleles to offspring.
