Answer: from the pulmonary veins into the left atrium.
Explanation:
After oxygenation of blood in the lungs, the right and left pulmonary veins carry oxygenated blood and empties it into the left atrium. The left atrium then empties the blood into the left ventricle through the left atrioventricular valve.
With contraction, the ventricle pumps the blood to the systemic circulation through the aorta. The blood flow into the aorta is guarded by the aortic valve.
Answer:
Newer layers of earth form <u>on</u><u> </u><u>top</u> of older layers, so as we dig, we can see further back in time. Comparing the fossils between the layers can offer evidence of change.
<u>Phyletic</u><u> </u><u>gradualism</u> - slow, but constant gradual change; supported by transitional species in the fossil record
<u>Punctuated</u><u> </u><u>equilibrium</u>- long periods of no change followed by short periods of rapid change. Can also be supported by the fossil record when no transitional species are found.
Answer:
One controversy that has resulted from the Human Genome Project is the ethics of genetic engineering and whether it should be used to create so-called "designer babies." Proponents of genetic engineering argue that it has the potential to eliminate genetic disorders and diseases, and that it could improve the overall health and well-being of future generations. For example, parents could use genetic engineering to ensure that their children have a lower risk of developing conditions like diabetes or heart disease.
On the other hand, opponents of genetic engineering argue that it could lead to a number of social and ethical problems. For instance, some people worry that genetic engineering could be used to create a society of genetically superior individuals, leading to inequality and discrimination. Additionally, opponents argue that we do not yet fully understand the potential risks and long-term effects of genetic engineering, and that we should therefore proceed with caution. They also raise concerns about the potential misuse of genetic engineering, such as using it to create individuals with enhanced physical or intellectual abilities for military or other nefarious purposes.
In conclusion, while genetic engineering has the potential to bring many benefits, there are also valid concerns about its potential consequences. It is important for society to carefully consider these issues and to proceed with caution.
Explanation:
The answer to your question would be b, viruses do not contain any nucleic acids.
hoped this helped.
Answer:
frost and hail
Explanation:
dew is litteraly just a drop of liquid water. the other 2 are frozen water.
