Answer: C. 30 - 50 million years ago
Explanation:
Fossils found in layer Y formed 30 million years ago according to the graph above. Similarly, fossils found in layer Z formed 50 million years ago.
If a fossil (fern fossil) is found between layer Y and layer Z, it means that it formed between the years that the fossils in layers Y and Z formed which is 30 - 50 million years ago.
Answer: 1 high blood pressure
2 headaches 3 nosebleeds 4shortness of breath
Explanation:
Answer:
B. They sold 120 student and 30 adult tickets.
Explanation:
120 x 12 = 1,440
30 x 20 = 600
1,440 + 600 = 2,040.
ATP consists of three phosphates, a base (adenine) and a sugar (ribose).
Answer:
The three mains in the process of DNA replication are 1 initiation 2 elongation 3 termination.
Explanation:
Enzymes those function during initiation
1 Helicase.
2 single strand binding protein.
3 Topoisomerase.
Enzymes those function during elongation
a DNA polymerase alpha
b DNA polymerase delta
c DNA polymerase epsilon
Enzymes those function during termination
1 Replication protein A
2 Replication factor C