<span>The correct answer is "Sudden changes in the somatic cells of organisms play a key role in the process of adaptive evolution". Adaption in evolution is caused by sudden gene mutations that affect an organism's offspring and give it - potentially - a better chance of survival. For example, a giraffe who passed on a mutated gene for a slightly longer neck to its offspring gave its offspring a better chance of reaching untouched food, and thus a survival advantage.</span>
<em><u>Answer</u></em>
<em><u>about 3.9 billion years ago</u></em>
<em><u>about 3.9 billion years agoThe most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago.</u></em>
75% (3/4)
there would be BB, Bb, Bb and bb
BB and Bb are the only ones that is dominant since bb is recessive.
Addiction is a condition of compulsive drug seeking and use, even with negative consequences is a <u>true</u> statement.
Explanation:
Addiction to drugs is a chronic and a relapsing condition or disorder which results in compulsory drug seeking behavior and its continuous use despite knowing about or having negative consequences it can cause to the brain and the body systems.
This is both a medical and a mental illness due to repeatedly misusing drugs or other substances and a severe form of a spectrum of substance abuse disorders.
Addiction is classified under substance use disorder and is categorized as mild, moderate or severe according to the symptoms. The symptoms or the negative consequences of addiction are generally grouped as impaired control, risky use, social impairment, pharmacological criteria for drug tolerance or withdrawal.
Answer:
sister chromatids separate and begin to move towards the pole of the cell during anaphase.
