Answer:
Blood vessels constrict
Explanation:
On seeing danger, impulses are sent to the adrenal medulla. It responds by secreting adrenaline into the bloodstream. This results in the following:
- Increased heartbeat
- Diversion of blood from alimentary canal and skin to skeletal muscles.
- Increased breathing rate and depth
- The liver releases more glucose.
These changes increase energy production especially in the skeletal muscles and prepare animal for sudden fight or flight.
Humans have 5 taste receptor cells.
sweet, salty, bitter, spicy, and umami
Increased atmospheric carbon dioxide will diffuse to the ocean water (since normally, there is lower concentration of dissolved carbon dioxide in the ocean water). The dissolved carbon dioxide takes into the form of carbonic acid thereby increasing acidity of ocean water. More often than not, the acidification of ocean water leads to detrimental results especially in marine organisms that are pH sensitive such as coral reefs and many invertebrates.
Answer: b. photochemical smog
Explanation:
Photochemical smog is the most common type of smog. It is produced when the ultraviolet rays in sunlight reacts with the nitrogen oxides present in the atmosphere.
It can be seen as visible brown haze. It can be seen in morning and in afternoon. It can be seen in cities which are densly populated.
The largest contributor to the formation of photochemical smog are automobile emission, and coal power plants.
Answer:
yeast is a micro organism
It is a fungi
it is used in making breads as it helps bread to become spongy and soft to eat.
this process is known as fermentation
