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.
Messenger RNA
Hope this helps!
They consist of identical sister chromatids
Answer: streaming along as a mass of cytoplasm.
Explanation:
Plasmodial slime molds are single cells that are fuse together by 1000 nuclei that are formed by the fusion of several flagellate cells. They form fruiting bodies when there is stimulus. The fruiting bodies help to disperse individual cells when there is favorable condition. They move by ooze to obtain good.
there would be no ecosystem
