One distinguishing feature is that protozoa are unicellular while fungi are multicellular.
He showed people proof of evolution, one way he did that was by looking at the different birds in the Galapagos Islands.
Answer:
Staining is an important way to improve RESOLUTION AND CONTRAST.
Explanation:
Microscopy refers to the use of microscope. Microscope is a scientific optical instrument that is normally used to achieve in depth study of invisible and very tiny objects. There are many techniques in microscopy, these techniques are use to improve the type of view produce by the microscope.
Staining is one of the techniques that are used in microscopy. It involves adding color to the objects that one wants to view under the microscope. Both living and non living objects can be stained. The major reason for staining is to improve the visualization of the stained object under the microscope. The staining is done in such a way that different important structures will be highlighted.
There are two types of staining, they are simple and differential staining.
Answer: Because some mutations can exert selection pressure on some mutations, selecting them positively in order to perpetuate the species.
Explanation:
Malaria may have exerted selection pressure on the human genome, causing it to evolve by selecting those genes that provide this resistance to the Malaria disease, prevailing against the negative effect of the mutation itself. Therefore, this phenomenon is seen in populations where mutation of the gene that codes for glucose 6-phosphate dehydrogenase is common, for example in some african pupulations.
