A.
Variation in species --> natural selection --> differential reproduction --> heredity --> evolution
B.
Heredity --> variation in species --> differential reproduction --> natural selection --> evolution
C.
Variation in species --> differential reproduction --> heredity --> natural selection --> evolution
I think the correct answer from the choices listed above is option A. When crossing-over takes place, chromosomes exchange corresponding segments of DNA. Corresponding genes on non-sister chromatids are exchanged at chiasmata. Hope this answers the question.
Hey there !
The answer is A. She should measure the size of her tomatoes.
Molly should do this so she is aware of how much the tomatoes have grown from the original size it was at.
Hope this helps !
False.
Any time a scientific theory is challenged, it means it's not a good
theory. And this statement is not valid. In theoretical models, they are
revisited when there are further studies and discoveries found in a certain
area where they can be remodeled and reintegrated instead of disregarding its
credibility. Models, theories and paradigms are not challenged but rather
encouraged, they are supported in many studies since these theories and models
were created in order for us to understand a certain phenomenon but it would
likely help the scientific society to be updated in the new forms or spheres of
improvement rather than discouragement.
It has been repeatedly tested and is widely accepted.
