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UNO [17]
3 years ago
12

1. Which aspects of soil do you think are easiest to change? Which are more difficult

Biology
1 answer:
Serggg [28]3 years ago
7 0
Difficult to change - nutrients! crops won’t grow on soil that has had all of the nutrients used up. example: after growing corn in the same place for 50 years, corn will not grow anymore because all of the nutrients it needs to grow will no longer be in the soil
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How do guard cells maintain homeostasis?
Mice21 [21]

Answer:

Explanation:  Guard cells in the plants prevent water loss from it in cases of soil dryness or high temperature by closing themselves. If this does not happen, water will keep leaving the plant by the process of transpiration in these harsh conditions and the plant will not have the important medium for the homeostasis process to continue.

4 0
2 years ago
Juanita sticks a nail to the end of a bar magnet. She then sticks a second nail to the first, then another to that one, and so o
Andreas93 [3]

Answer – The force of gravity is stronger than the force of magnetism.

 

The attractive force of magnetism is the force that keeps the nails joined to one another and to the end of a bar magnet while the force of gravity is the force acting to pull the nails to the ground. If when Juanita sticks the seventh nail, it falls off the sixth nail, it means that the force of gravity acting on the seventh nail is stronger than the force of magnetism acting on it.

8 0
2 years ago
Read 2 more answers
3. Suppose you are viewing a sample from a PURE culture and observe both red and purple cocci. What are the possible problems th
Scorpion4ik [409]

Answer:

The culture might not be stained properly or the culture might be too old.

Explanation:

Gram staining is done to differentiate between gram-positive and gram-negative bacteria according to the difference in their cell wall. In gram staining, the gram-positive bacteria appears violet and gram-negative bacteria appear pink in color.

Therefore if a pure culture contains have both red and purple cocci that it can be concluded that the gram stating was not done properly like too much destaining was done or too much safranin was used or maybe the culture is too old so that cell wall of some bacteria degrades.

7 0
2 years ago
Classifying things by observing can best be done using a
olchik [2.2K]

Classifying things by observation can best be done by using a  : Taxon


Taxon divided organisms into different groups based on their unique similarities, which is the best way to classify things if you're doing it by observation.

5 0
2 years ago
What type of biological molecule is this?<br> protein<br> nucleic acid<br> lipid<br> carbohydrate
sveticcg [70]

Answer:

Lipid

Explanation:

lipids are comprised of a glycerol and three fatty acid tails.

3 0
2 years ago
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