More than one third of North American bird species can be found in wetlands. Wetlands may contains fresh or salt water or both. Biodiversity and nutrient levels are high; many plants and organisms filter out waste materials. Birds like geese, ducks, herons, warbies, and egrets, to name a few, use wetlands for nesting and feeding.
Answer: stimulus (plural: stimuli).
Explanation:
Answer:
The correct option is <u>4. They are specialized.</u>
Explanation:
All cells in our body originate from the stem cells. The stem cells keep dividing and become specialized. Each specialized cell in the body performs a specific function for which it is made. Also, the shape of some cells is changed so that they have a shape which allow them to perform their functions. For example, the cells in our muscles are termed as myocytes. There are three different kinds of myocytes, each with different shapes which allows them to function properly.
I believe using gel electrophoresis to separate and identify plasmids and short linear pieces of DNA would be important if one is making a recombinant plasmid and has to verify that he/she has been successful. Gel electrophoresis is a technique that is used to separate mixtures of DNA, RNA, or proteins according to molecular size. The molecules being separated are pushed by an electrical field through a gel that contains small pores.
