A)Appendix D)tailbone and C)wisdom teeth are vestigial structures that have no important function
Answer:
An inclined plane reduces the effort force by increasing the distance through which the force is applied. So the actual effort decreases and is less than the unity always. Therefore, an inclined plane reduces the effort as well as work done.
Explanation:
<span>Your basic lens is the pinhole camera. You can illustrate
a picture to exemplify how the light rays bypass through the hole to outline a picture
on the screen. A lens is a development on the pinhole, but the pinhole result
is still there, defined by the width of the lens. In a camera, the width is
adjustable and that is what the f-stop embodies. A small f-stop means a small
hole and the pinhole effect permits focus in a large range. A large f-stop
means the focus has to be more accurate, and things in front or behind the
focus point are blurred. In a microscope you have no such adjustment, so depth
of focus is always the same meaning that some objects in front of and behind
the object being viewed will also come into view in focus.</span>
Answer & explanation:
1. In the nitrification process, the oxidation of ammonia (NH₃) occurs, converting it to nitrite and, subsequently, to nitrate. This process is performed by chemosynthetic bacteria (also known as nitrifying bacteria), that is, they use the energy released in nitrification to synthesize their organic substances.
2. Denitrification occurs when bacteria in the soil called denitrifiers use nitrates and turn them into nitrogen gas. Denitrification ensures the return of nitrogen to the atmosphere.
3. The fixation of atmospheric nitrogen occurs mainly with the help of bacteria. These bacteria form nodules in the cortical region of the roots of these plants, where they act by capturing atmospheric nitrogen and transforming it into ammonia (NH₃), which will be used by plants.
