The answer is c. Electron transport chain
Use less fossil fuels, drive cars less, (stop releasing their carbon gases), and recycle.
In an ideal situation, the producers include the trees, grasses and forests.
Building of roads and parking lots involve the clearing of forests and bushes.
Therefore there would be a decrease in number of producers. And ur answer is A.
Please mark me as brainliest.
Answer: Attached below is the missing part of your question
answer
Mutant A
<em>1) Requires tryptophan in the growth medium or from a donor mutant </em>
<em>2) Must form nanotubes to obtain it's required amino acid in this scenario:</em>
Mutant B
<em>1) Requires histidine in the growth medium or from a donor mutant </em>
<em>2) Does not need to form nanotubes to obtain it's required amino acid in this scenario:</em>
Explanation:
<u>Mutant A ( Over produces His and cannot produce Trp ) </u>
1) Requires tryptophan in the growth medium or from a donor mutant ; This is because the Mutant is an auxotroph for tryptophan.
2) Must form nanotubes to obtain it's required amino acid in this scenario:
This is because growth medium of the mutant is supplemented with histidine
<u>Mutant B ( cannot produce His and overproduces Trp </u>)
1) Requires histidine in the growth medium or from a donor mutant :
This is because Mutant B lacks the biosynthetic pathways necessary for histidine production
2) Does not need to form nanotubes to obtain it's required amino acid in this scenario: because the Mutant cell can easily take up the required amount of Histidine from its surroundings.