a group of single-celled eukaryotes.
Answer:
Uracil
Explanation:
Uracil is in RNA thymine is in DNA
There are three main factors that affect the mutation rates in an organism. The three are:
1. <span>Frequency of Primary Changes in DNA
2. </span><span>Probability of Repair
3. </span><span>Probability of Recognition</span>
Answer:
B. Surgery
Explanation:
I am not entirely sure but based on the definition of selection pressure (which talks about how external agents affect the survival of an organism) surgery is does not meet the definition.
A tiger hunting a prey affects the survival of prey. Beginning of ice age is an environmental agent that can affect survival of organism that cant tolerate cold. Antibiotics are drugs that can kill bacteria thus lower their survival. Surgery can actually increase survival if some form of disease is being treated.
