Hello there!
Your question states: What is the (role) of oxygen in cellular respiration?
Your correct answer would be the (second option) as it reads "it combines with carbon monoxide to form carbon monoxide. This would be the role in oxygen in the cellular respiration, to combine certain elements such as these.
I hope this helps you!
A figure 8 shape is how the blood goes throught the body
Answer: There re two different types of phenotypes in the offsprings that is Round yellow and Round green.
Explanation-
As per the Mendelian inheritance, Round shape and yellow color of pea are dominant over wrinkled shape and green color of pea.
According to the question, genotypes of parents are- RrYy ( heterzygous for round and yellow) and RRYy ( homozygous for round and heterozygous for yellow).
The first parent can produce four different gametes that is RY, Ry, rY, ry whereas the second parent will produce only two types of gametes that is RY and Ry.
When they are crossed, they will produce two different phenotypes in the offsprings.
Refer punnett square.