Answer:
Ways HIV Cannot Be Spread
Saliva, tears, or sweat that is not mixed with the blood of a person with HIV. Shaking hands; hugging; sharing toilets; sharing dishes, silverware, or drinking glasses; or engaging in closed-mouth or “social” kissing with a person with HIV. Drinking fountains.
Explanation:
Answer:
c.) The mucosa consists of a particularly vascular epithelium that facilitates efficient repair and renewal
a.) The tissue lining the stomach is an epithelium and thus capable of repair and renewal
Explanation:
The cells that form the lining of the stomach are deemed to wear out regularly due to the regular food intake they handle.
Due to this constant wearing, this cells have a mechanism of rejuvinating in order to handle their work.
Answer:
As light intensity increases to 800 (units), the rate of photosynthesis also increases. This is because a higher light intensity results in an increased rate of the light dependent reaction. However, when light intensity increases above 800, the rate of photosynthesis remains constant. This is because the light intensity is no longer the limiting factor, meaning that something else must be limiting the rate of photosynthesis. This could be carbon dioxide concentration or water availability. CO2 is required for the light independent stage of photosynthesis (the Calvin cycle) whereas water is required to produce H+ and e- for the electron transport chain.
Explanation:
I hope this would be enough to get the 4 marks. The main point is that the rate does not increase each time light intensity increases, because there is a limiting factor that is affecting the rate of the light independent reaction.
Answer:
A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest
Explanation: