Answer: Option B.
A see saw, chin raise.
Explanation:
A lever is a machine that can rotate and consist of a beam which is pivoted to fulcrum.
There are three classes of lever, the first class lever, second class lever and third class lever. These three classes of lever are classified base on the positions of effort, fulcrum and Load.
In first class lever, fulcrum comes between the effort and load. Examples is scissors , see saw, pliers. This is because effort is applied on the one side of the fulcrum and load is on the other side. Therefore, the childhood demonstration of first class lever motion is see saw and chin raise.
In the second class lever, load come between effort and fulcrum e.g wheelbarrow, bottle opener.
In the third class lever, effort comes between fulcrum and load e.g hammer, broom.
An Asian clam, a fresh water creature, is usually less than 50 millimeters.
It tends to be small and light-colored, with a shell ornamented by distinct, concentric sulcations, anterior and posterior lateral teeth with numerous fine serrations. It resides in brackish to freshwater rivers, lakes, streams, canals and reservoirs. This creature lies on or is slightly buried in materials such as sand, silt, or gravel-bottomed places. It usually prefers running water with high oxygen levels and has no tolerance for polluted or near-freezing water.
Total number of oxygen atoms in carbon dioxide and water
Step 1: Isolate the two kinds of DNA.
Step 2: Treat the plasmid and foreign DNA with the same restriction enzyme.
Step 3: Mix the foreign DNA with chopped plasmids.
Step 4: Add DNA ligase.
Answer:
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