Answer:
Due to exchange of gases i.e. normal and abnormal.
Explanation:
The main difference between incomplete and complete ventilation is the occurrence of normal and abnormal exchange of gases. The mechanism in which the exchange of gas happens completely without any difficulty is called complete ventilation. It is the process in which the required amount of oxygen is inhaled or inspired and appropriate amount of carbon dioxide is exhaled out of the body while on the other hand, incomplete ventilation is a mechanism in which exchange of gases is not normal.
Answer:
DNA replication is the process in which the DNA is copied and it occurs during synthesis phase of the eukaryotic cell cycle. It begins with an enzyme breaking the bonds between complementary bases in DNA which exposes the bases inside the molecules so they can be read by another enzyme and used to build two new DNA strands with complementary bases.
Explanation:
The original strand is: TAGCGTT
ATCGCAA
The Mutated strand is: TGGCGTT
ATCGCAA
<em>The replicated strand is: GAATCAC</em>
<em> CTTAGTG</em>
<span>Lysosomes are organelles which are responsible for breaking down and digesting wastes in the cell.
Lysosomes and vacuoles have the same functions. Both are enclosed organelle compartments within a cell and are recycling centers responsible for breaking down substances or complex molecules that goes into a cell. Both are sacs which contain digestive enzymes for breaking down foreign materials, food, and pathogens. Vacuoles are found in plant cells and lysosomes are in animal cells. Vacuoles play an important role in plant’s food production. It stores water and hydration of plants.<span>
</span></span>
Answer:
1. specialized cells
2. extracellular protein fibers
3. a fluid known as ground substance
Explanation:
Answer:
This is an incomplete question.
Below should be the complete one with options:
A researcher introduces a signal produced by bacteria to eukaryotic cells that she is culturing in the laboratory. Remarkably, she notices that this signal results in an increase in eukaryotic gene expression. How is this possible?
A.This gene expression is likely independent of the presence of the prokaryotic signal.
B.The signal is either similar in structure to a ligand used by eukaryotes, or this signaling pathway is utilized by both prokaryotes and eukaryotes.
C.This signaling pathway might actually be utilized by both prokaryotes and eukaryotes.
D.This signal is likely similar in structure to ligands utilized by eukaryotic cells.
E.This prokaryotic signal likely travels directly into eukaryotic cells and acts as a transcription factor.
THE CORRECT ANSWER IS B
B.The signal is either similar in structure to a ligand used by eukaryotes, or this signaling pathway is utilized by both prokaryotes and eukaryotes.
