Answer: Scientists who study evolution may want to know whether two present-day species are closely related. Evidence for evolution can be structural, genetic, or bio geographical. Fossil skeletons of horse relatives dating from various time periods. ... of fossils and living species may tell us how modern organisms evolved. so D
Explanation:
Answer:
using guard dogs for protection herds
Answer: <em><u>1838</u></em>
Explanation: In 1838 Schwann became familiar with Matthias Schleiden's microscopic research on plants.
<span>The dissociation theory states that while in hypnosis, the mind is completely separated from the rest of consciousness. So, if a person underwent hypnosis, and her hand was put in ice, her mind would theoretically not be able to register the pain that would be experienced by her body. So, the statement that she didn't feel pain from the ice is consistent with the dissociation theory.</span>
Answer:
DNA is made up of sugar-phosphate backbone and the phosphate in the DNA contains the negative charge, therefore, DNA is a negatively charged molecule present in the nucleus.
This negative charge is very important in separating the DNA according to their charge and size during gel electrophoresis. During gel electrophoresis DNA of different size is run on an agarose gel in the presence of current and DNA fragments move toward positive charge due to negative in nature.
Small size DNA moves fast through the gel large size DNA moves slow towards negative pole, therefore, separating the DNA according to their size. In gel electrophoresis, red pole is positive pole and the black pole is negative so runs to the red phrase is signifying that the DNA is always run towards the red pole.
