The Cretaceous–Paleogene (K–Pg) extinction event (also known as the Cretaceous–Tertiary (K–T) extinction) was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago.
Answer:
A
Explanation:
the sequence of genes on a DNA molecules contain the instructions that code for protein
Answer: The Answers are, A: happens all the time, D: can be caused by genetic drift, and E: can be caused by natural selection.
Answer:In 2019, the United States consumed about 31.01 trillion cubic feet (Tcf) of natural gas.
Explanation:
