Answer:
Tiny cells make up everything in your body, groups of these cells will make body tissue and body tissue makes up all the organs in your body like heart and liver. These organs make up an organ system like the respiratory system which focuses on bring air in and around your body. With all these systems working together your body will work perfectly.
I hope that this is ok.
Answer:
The situation in which some individuals have greater reproductive success than other individuals in a population. Along with variation and heritability, it is one of the three conditions necessary for evolution by natural selection.
There are so many factors that contributed to this over time, reproductive success differs and it could be attributed to hereditary and variation as well. Most often, the hereditary plays the most role out of all as the viability of both eggs and sperms could have been inherited from parents or being affected as a result of environmental factor or nutrition or other factors.
For instance, if one has a rhesus factor of negative and went ahead to marry another male counterpart with negative rhesus factor, this sedomly leads to miscarriage which could have been controlled had it been they were thoroughly counseled. Furthermore, physical factor such as accident could damage one spermatical vessicles that houses the sperm cells which render such an individual to be unable to donate a viable sperm cell for reproduction.
Those with high rate of reproductive success thrives as result of having many offspring which increases their chances of having more offspring than those with little success rate.
Explanation:
Tumor suppressor genes typically inhibit division of cancer cells and preventing tumor formation.Mutation in this gene result in loss of function so it is typically recessive. This means that tumor suppressor genes acts as brake in formation of cancer cell. It prevents the growth of tumors. If one brake (one tumor suppressor gene) is defective it can still stop the car or cancer formation. However, since mutation in tumor suppressor gene is recessive, if two brakes are defective the car will not stop. Or the tumor will be expressed and be formed.
Answer:
A) heritable traits cannot be altered by experience
Explanation:
This is because the Darwinist believe that heritable traits were acquired from previous generation not from practise or learning which may develop to experience with time.He believed that certain selective pressures must have acted or selected these organisms to possess these heritable characteristics, and can not be altered by experience whicg is acquired with age.
He should conclude therefore that variation in the organisms which possess these characteristics should be the main factor which gives them selective advantages to inherit these traits compare to others in this same surrounding environment Therefore he will discard the influence of environment.
