Another name for unicellular organisms that dominated Earth up to the Precambrian time is prokaryotes. The correct answer is D.
Answer:
Point no 2 and 4 are correct
Explanation:
100 points?
Answer:
D) Mouth, pharynx, esophagus, stomach, small intestine, large intestine.
Explanation:
Food is ingested in the mouth, passes through the pharynx that connects the mouth to the esophagus. It moves down the esophagus by parastalsis. It is further digested in the stomach, absorbed in the small intestine and indigestible material together with fibre is passed to the large intestine where its either digested by freindly bacteria or eliminated as waste by defecation.
<span>"The moon is a major influence on the Earth’s tides, but the sun also generates considerable tidal forces. Solar tides are about half as large as lunar tides and are expressed as a variation of lunar tidal patterns, not as a separate set of tides. When the sun, moon, and Earth are in alignment, the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides."
- oceanservice
Hope that helps!!</span>
As we have studied in junior classes <em>that all animals including bacteria contain a plasma membrane around their cell which controls the movement of water and materials to and from the cell.</em>
The bacteria are the main hazard in pesticides and if we study about its structure, it contains both cell membrane and cell wall. Now another point in that bacteria lives in a moist or hypotonic environment in which the concentration of water inside the cell is less than the concentration of water outside the cell. This results in more movement of water from outside to inside the cell since we know that water moves from a place of higher concentration to a place of lower concentration.
Now when the water moves inside the bacterial cell, it can burst bacterial cell but thanks to the presence of cell wall which donot lets the burst caused.
So coming towards sugar solution, when bacteria are dipped in dilute sugary , the outside environment around a cell is sugary, and the concentration of water in the solution is less than inside the cell and water tends to leave the cell. the major effect of sugary solution is that it withdraws water from inside the body of micro organisms if the external concentration of sugar is high enough. When the water will move out of their body, they will die and their spores will not be able to germinate too.
This will eventually make our food (vegetable, fruit or any other) clean.
Hope it helps!
