We can’t see the picture :(
Maybe post another question but with the picture
Phoebus Levene was the one who proposed <span>the polynucleotide model stating that dna and rna were composed</span>
The correct answer is the first statement.
In intraspecies competition, there is a competition for recourses among the individuals from the same species. This is due to the limited availability of the recourses in the habitat. Only the fittest individuals will be able to gather enough recourses and survive.
Attach image to describe better