Answer:
Analogous or convergent structure.
Explanation:
Analogous structures can be defined as structures that have similar purposes but look completely different from each other. in other words it means that they serve the same functions in different species, but they are independently evolved. Examples of analogous structures are
- wings on butterfly, bats and birds
- Fins in penguins and fish
Natural Selection could produce new variations of body parts.
Answer:
Explanation:
DNA polymerase is an enzyme that helps in the synthesis of new strands of DNA. It is found in both prokaryote and eukaryotes. In prokaryotes, there are 3 types of DNA polymerase and more DNA polymerase found in eukaryotes.
The 3 types of DNA polymerase are DNA polymerase I, DNA polymerase II, DNA polymerase III. The DNA pol I and DNA pol II helps in DNA repair rather than DNA replication. The DNA pol III is the major enzyme that initiates the replication.
DNA polymerase III is a multisubunit enzyme that functions as a dimer of these multiple subunits. The DNA polymerase enzyme has 3 significant enzymatic activities -
All DNA polymerase direct the synthesis of DNA from 3' to 5' end.
It possesses 3' to 5' exonuclease activity. It also helps in proofreading activity by replacing the incorrect nucleotides with the correct base sequence.
Some DNA polymerase has a 5' to 3' exonuclease activity. It is found in the lagging strand.
DNA polymerase is not able to initiate DNA synthesis alone. They need a free 3' end, where the enzyme can add new nucleotides. It means they require 2 primers to initiate the DNA replication in both the direction.
The strands act as complementary to the DNA polymerase. The DNA polymerase adds new strands continuously in 5' to 3' direction in the leading strand. While in lagging strand short fragments of DNA formed. Later they attached by DNA ligase.
DNA polymerase also needs RNA polymerase in some cases to start replication. Such a process is called reverse transcription.
Answer:
The body will overheat
Explanation:
If the brain of an individual does not receive input that the body was starting to heat up on a hot day, <u>the setpoint temperature of the body would be exceeded and the body will overheat. If the condition persists for a while, the entire systems of the body may shut down due to overheating. </u>
Normal homeostatic response requires that the brain (the control center) receives a message from the skin (the sensor) about a rise in the body's temperature. In turn, the brain will set mechanisms that will bring the body's temperature back to normal in motion, including vasodilation of the blood vessels in the skin to allow more blood into the skin which in turn causes more heat loss to the surrounding.<em> Thus, an individual starts sweating and the evaporation of the sweat causes cooling and a return of the body to the setpoint temperature.</em>
Heat can help relieve joint pain<span>. If you get sore muscles once in a while, you can take </span>acetaminophen<span> (</span>Tylenol) or anonsteroidal anti-inflammatory drug<span> (</span>NSAID<span>) like </span>aspirin,ibuprofen<span> (</span>Advil<span>, </span>Motrin<span>), or </span>naproxen<span> (</span>Aleve<span>)to help ease the discomfort. A hot bath may help</span>
