I would say the correct answer is D. fruits and vegetables that do not spoil easily.
To me, this seems like the only advantage to genetic engineering among these examples. A is incorrect because you would want your crops to grow faster, not more slowly; B is incorrect because pathogens are bad and you don't want them; C is incorrect because diversity is important. Thus, D is the only correct answer here.
400x. Total magnifaction = Eyepiece magnifaction × Objective magnification.
Answer:
d.They are still very common ,but threatened with increasing harvesting for timber.
Explanation:
Brazil's Araucaria trees:
These trees are very soft and can be cut so easily.Brazilian pines is also know as Araucaria tree.
Before 1950's or 60's the number of trees were more but now due to harvesting the number of trees become less.The these trees are used for timber and for glue also.
In the present time the availability of these trees threatened with increasing harvesting for timber.
So the our option d is correct.
Is called the cell membrane
