Answer:
Carbon, Hydrogen, Oxygen, Nitrogen
amino acids?
Explanation:
I know that the first part is right I just don't understand exactly what it is asking for the second but I gave my best answer for it.
There are 5 main types of pathogens that can harm other organisms and cause diseases. They are viruses, bacteria, fungi, Protozoa, and worms.
Answer:
A gene mutation
Explanation:
DNA nucleotide sequence is unique
Answer: It is considered the "Plastron". What your referring to it is a tough layer of skin on the back of the turtle.
Explanation:
Weathering and erosion played a big role in forming the grand canyon. The rock was being weathered, most likely mechanical weathering, and then it eroded away. Think of a pebble that is in running water. When you pick it up, it is smooth, right. But before, it was pointy. So, the grand canyon was once a big rock, and weathering broke through it making it one of the wonders of the USA.