The correct answer would be D.
After many generations, only those with genes suitable to live in harsh environments can live. These genes are passed onto their offspring and then we see a rise in antibiotic resistant strains of bacteria such as Methicillin Resistant Staphylococcus Aureus (MRSA).
Answer:
sugar level
Explanation:
Diabetes mellitus , in simple language known as the diabetes , is a group of metabolic disorders which are due to increased level of blood sugar over a long period of time .
The symptoms are -
feeling thirsty , frequent urination and increased hunger .
<u>Untreated diabetes can lead to many problems , even can be fatal .</u>
The acute problems due to diabetes are - hyperosmolar , ketoacidosis or death .
There can be some serious problems which are life long -
like stroke , foot ulcers , damage to the eyes , cardiovascular disease .
Answer;
-Allele frequency change
In single-gene traits, natural selection can lead to allele frequency change.
Explanation;
-Allele frequencies can change over time within a single population, and frequently differ between populations. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift.
-Random forces lead to genetic drift. Sometimes, there can be random fluctuations in the numbers of alleles in a population. These changes in relative allele frequency, called genetic drift, can either increase or decrease by chance over time.
