Answer:
The answer is D, Can planting cover crops reduce erosion?
Explanation:
Viruses don't make their own proteins because they are not cells. A virus is a nucleic acid enclosed in a protein coat, and does not contain organelles. Bacteriophages, viruses that target bacteria as a host, inject their genetic material into the host bacterial cell. Therefore, cells don't even need proteins, (not including their protein coat) so they do not make them.
*Keep in mind that since there are no organelles, there are no ribosomes for the RNA (ribonucleic-acid) to deliver the coded message and amino acids to.
Answer:
Because viruses do not have their own cellular mechinary. They lack enzymes for replication of DNA and to produce their protein.
Explanation:
b. Charles Lyell.
c. Jean Baptiste Lamarck.
d. Alfred Russel Wallace
Answer:
Embryonic Stem cell
Explanation:
Stem cells are the multipotent cell which can give rise to a variety of other cells and can form different tissues. The stem cells are present in the embryo and the well-developed adult organism, therefore, is known as the embryonic stem cell and the adult stem cell.
In the given case, after the blastocyst stage of embryo is formed, the cells present in the inner side of the blastocyst possess the ability to form different organs and therefore are called embryonic stem cells.
Thus, embryonic stem cell is correct
B. 2.89 g/mL
C. 5.50 g/mL
D. 6.67 g/mL