The correct answers are:
A. The southwest was covered with sand dunes. This period increased aridity in the southwest of the USA
.
D. Much of the northern United States was ice covered. During the last glacial period, the north of USA was covered by ice, in especial during the Last Glacial Maximum (LGM)
.
These answers are not correct:
B. Canada was covered with ice thousands of feet thick. During this period, Canada was almost completely covered in ice (97%); however, the ice was not so thick
.
C. Florida received heavy rains. Florida was drier during this period.
Answer:
a. Both are made of cells
Explanation:
According to the cell theory all living organisms are made of cells. An apple tree and a human are both livings organisms. Therefore they are both made of cells
Helicase separates the two strands of DNA at the Replication Fork behind the topoisomerase. The enzyme responsible for catalyzing the addition of nucleotide substrates to DNA in the 5′ to 3′ direction during DNA replication. Hope I’ve helped ;)
The correct answer is the first option because it says it has partially decomposed plant matter so the fires are keeping it from becoming overgrown.
Answer:
a)This is RNA polymerase performing transcription
Explanation:
We can see that the purple molecule is attached to a DNA molecule, and is producing an mRNA molecule from a template strand. This is the process of transcription
The enzyme that carries out the synthesis of an mRNA molecule is RNA polymerase.
If the molecule was a ribosome performing translation, we would expect a polypeptide chain to be produced rather than an mRNA, and that the template molecule would be mRNA
If the molecule was DNA polymerase, it would synthesising a DNA strand not mRNA
If the molecule was a DNA repair enzyme, it would be correcting errors, not synthesising mRNA.