Osteoporosis refers to an ailment characterized by reduced bone mass and loss of bony tissue that may lead to weak and fragile bones. In an experiment, Dr. Travis tested the influences of the consumption of calcium on osteoporosis, the condition that results in enhanced chances of bone fractures.
In the given experiment, the amount of calcium is the independent variable, and the risk of bone fractures could get changed with the amount of calcium consumption.
<span>The answer is because <u>they compete with native species for resources within a specific niche.
</u>The new species introduced in an area where it has never been before is known as introduced species. The introduced species usually has no natural enemies (predators) so it can spread in the new area. However, as it spreads more and more, it will use resources of the native species. So, the native species must compete in order to survive. This way, they not only treat the native species but the local biodiversity. This could cause the extinction of many native species and not only those the introduced species compete directly.</span>
The penis is the male copulatory organ, so penis is the answer
Answer:
<em>The correct option is C) The helicase enzyme unwind the DNA molecule into two strands.</em>
Explanation:
DNA replication occurs in a semi-conservative manner. This means that each strand of the DNA can give rise to a new strand. For the process of DNA replication to begin, firstly it is necessary that the DNA unwinds. Topoisomerases are enzymes which are known to remove the super-coiling of the DNA. Helicases can be described as the enzymes which separate the two strands of DNA from the region where replication has to begin. Hence, option C is correct.
