Which statements explain the cold temperatures in the Northern Hemisphere during the winter? Choose the TWO correct answers. A.
The Northern Hemisphere is farther from the sun during the winter.

B.
In the Northern Hemisphere, the sun is lower in the sky during the winter.

C.
Earth is farther from the sun during the winter.

D.
Earth rotates more slowly during the winter.

E.
The Northern Hemisphere gets less direct sunlight during the winter.

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/XzW3SUN

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.