The tundra has trees, some grasses, large animals, and is usually cold. The desert on the other hand, Is usually hot, and has less animal and plant life. Deserts can be cold in some places though.
C. the crust and upper mantle
Answer:
Rocks on land
Explanation:
The salt in the ocean comes from rocks on land.
Answer:
Explanation:
In the Hershey and Chase experiment, they aimed to show where the phage DNA went when it exited the protein coat and entered the bacteria. In this scenario, the two student's approach won't work because amino acids (and therefore all proteins) also have nitrogen atoms which ultimately means that the radioactivity would not distinguish between DNA and proteins and the experiment will not provide the correct results.