How are fossil fuels used in the harvesting of fresh apples from an apple tree?

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a. earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c. earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

What will happen if two of the base pairs of the stand of the dna are switched