Around 4.1 billion years ago the first single celled organism appeared
Answer:
False
,As fluids speed increases air pressure decreases
Explanation:
See the image for explaination.
Answer:
It is the arrangement of nucleotide within the genes which differs among DNA structures of different species. Each gene contains several codons which is three nucleotide long
There were 20 seats in each row
The answer is A: The rough ER has visible ribosomes.