Answer:
Option C
Explanation:
All of the following options are correct except option C. in the Meselson Stahl experiment, after the first round of replication, the DNA molecules made consisted mainly of one parental strand and one new strand each which is the DNA molecules of intermediate density (H-L). Then future replications will produce more of the low density L-L density. This form of replication is thus termed to be the semi conservative form of replication
Answer:
b. Ebola and Lassa are both caused by viruses.
Explanation:
Ebola fever is caused by the Ebola virus which is an enveloped virus and is a member of<em> Filoviridae</em>. Ebola virus infection is 80% fatal. The incubation period for pathogen ranges from 2 to 21 days. Symptoms of the infection are fever, muscle and joint ache, stomach pain, bleeding, etc. Lassa hemorrhagic fever is caused by the Lassa virus. Infection with the Lassa virus causes fever, malfunctioning of the gastrointestinal system and bleeding.
The correct answer is muscles can only pull.
The movement of arm takes place by the relaxation and contraction of muscles. Muscles in animals are in pair because muscles can only pull, when a pair of muscle is present in animals one muscle relaxes and the other one contracts. An example of this is biceps and triceps of arm. The triceps of the arm relaxes while the biceps of the arm contracts, this movement helps to lift the arm. The reverse also takes place in the arm.
Living your best life is honestly up to your own interpretation.
Living your best life is what YOU think is best for yourself.
Here’s what I think it means:
Living your best life means living a life where there are no boundaries and you are free to do what you want. Doing what I want in the future will make me happy. Happiness will give me my best life.
