Answer:
C
Explanation:
Positive natural selection, or the tendency of beneficial traits to increase in prevalence (frequency) in a population, is the driving force behind adaptive evolution. ... At the molecular level, selection occurs when a particular DNA variant becomes more common because of its effect on the organisms that carry it.
Polar bodies are considered byproducts of oogenesis. They are lacking cytoplasm and are much smaller than a regular egg cell. Typically they disintegrate after meiosis. It is unlikely for the resulting zygote to become a healthy embryo because the polar body was never meant to get fertilized. Therefore it is most likely lacking nutrients, and does not have the necessary resources for a healthy baby to develop.
Hope that helped you.<span />
I’m pretty sure it’s the first one because it talks about the structure of its cell and explains how this helps it carry out its function
Answer:
Important objectives for the cow/calf producer is given below.
1) First objective of cow/calf producer is to provide healthy food material to the cow and calf in order to gain more benefit from it.
2) Second objective of cow/calf producer is to increase milk and meat production from animals in the farm to earn more money from it.
