1 - B
2 - Also B
3 - D
4 - B again
Anything else i can help with Dean?
The United States Constitution is silent on the subject of political parties. The Founding Fathers did not originally intend for American politics to be partisan
Answer:
The relationship between the frog and the insects is a predator-prey relationship. If the number of frogs in the ecosystem decreased because of human activity, there's a possibly that the number of insects might increase.
Explanation:
In this controlled ecosystem, frogs naturally prey on insects. If there were to be less frogs in the ecosystem, the number of insects might increase because there are fewer frogs to hunt them.
Why study human genetics? One reason is simply an interest in better
understanding ourselves. As a branch of genetics, human genetics
concerns itself with what most of us consider to be the most interesting
species on earth: Homo sapiens. But our interest in human
genetics does not stop at the boundaries of the species, for what we
learn about human genetic variation and its sources and transmission
inevitably contributes to our understanding of genetics in general, just
as the study of variation in other species informs our understanding of
our own.
A second reason for studying human genetics is its
practical value for human welfare. In this sense, human genetics is more
an applied science than a fundamental science. One benefit of studying
human genetic variation is the discovery and description of the genetic
contribution to many human diseases. This is an increasingly powerful
motivation in light of our growing understanding of the contribution
that genes make to the development of diseases such as cancer, heart
disease, and diabetes. In fact, society has been willing in the past and
continues to be willing to pay significant amounts of money for
research in this area, primarily because of its perception that such
study has enormous potential to improve human health. This perception,
and its realization in the discoveries of the past 20 years, have led to
a marked increase in the number of people and organizations involved in
human genetics.
This second reason for studying human genetics is
related to the first. The desire to develop medical practices that can
alleviate the suffering associated with human disease has provided
strong support to basic research. Many basic biological phenomena have
been discovered and described during the course of investigations into
particular disease conditions. A classic example is the knowledge about
human sex chromosomes that was gained through the study of patients with
sex chromosome abnormalities. A more current example is our rapidly
increasing understanding of the mechanisms that regulate cell growth and
reproduction, understanding that we have gained primarily through a
study of genes that, when mutated, increase the risk of cancer.
Likewise,
the results of basic research inform and stimulate research into human
disease. For example, the development of recombinant DNA techniques (Figure 3)
rapidly transformed the study of human genetics, ultimately allowing
scientists to study the detailed structure and functions of individual
human genes, as well as to manipulate these genes in a variety of
previously unimaginable ways.
The cost-benefit analysis done to investigate a proposed mine site would take into consideration the cost of environmental restoration after mining and the value of the ore to be extracted from the mine.
<h3>Cost-benefit analysis</h3>
This is an analysis done to assess the cost and benefits of actions.
For an action to be profitable, the benefits must be more than the cost.
In this case, for a mine site, the value of the ore to be extracted from the mine has to be more than the cost of having to restore the site after mining.
Every other cost can also come in but the two major ones are those highlighted.
More on cost-benefit analysis can be found here: brainly.com/question/3443140
