<span>If a test tube has been used, and its contents is supposed to be disposed, carefully pour the contents to the lavatory with a confirmation of a professional (as it may damage the pipelines of the sink) and ensure that there are no splashes created that can contact the human skin. Wash the test tube thoroughly and let dry.</span>
Answer:
True.
Explanation:
The Chargaff's rules indicate that in the DNA of all living organisms the amount of adenine (A) should be equal to the amount of thymine (T), while the amount of guanine (G) should be equal to the amount of cytosine (C). These rules were useful to describe the structure of the double helix and also enable to describe base patterns that often are associated with specific gene regions (for example, promoter regions are rich in AT). Moreover, an imbalance in the 1:1 equilibrium ratio is associated with mutations that may cause diseases such as cancer.
A divergent boundary is a place where two tectonic plates are pushed apart by the formation of new crust rising up from the mantle. At a divergent boundary you would expect to find:
Rift Valley
Mid-Ocean Ridge
Deap Sea Trench
New Oceanic Crust
Answer: first one is alternate interior angles
m A = 70
m B= 80
m C = 30
