The railroads :)
<span>Especially in 1848, when workers began to build the Galena & Chicago Union Railroad. </span>
<span>Here's some info. http://encyclopedia.chicagohistory.org/pages/653.html
Hope this helps</span>
Answer:
endocrine system and Sympathetic nervous system;
Explanation:
The likely purpose for the protruding fins that the dinosaurs may have on their body would be
- temperature regulation,
- defense,
- ornamentation to attract a mate
<h3>Why would a dinosaur have this characteristics?</h3>
This is the way that the body of the dinosaur is built. They are shaped in this form for all of the reasons that have been listed above in the question. This is due to the fact that they want to attract their partners and also because of the temperature that may be prevalent in the surrounding. This is used as a control.
Hence the The likely purpose for the protruding fins that the dinosaurs may have on their body would be
- temperature regulation,
- defense,
- ornamentation to attract a mate
Read more on dinosaurs here: brainly.com/question/17321635
#SPJ4
An archenemy is someone who is hostile towards someone or something else. In this case, the US and Soviet Union were archenemies because they were both very powerful and both of them wanted to be better than the other.
Hope this helps :)
Answer:
a. sham lesion control group.
Explanation:
The experimenter will need to conduct a sham or placebo surgery or in simple words a fake surgery or radio frequency lesion on the rats in the control group. This will look like radio frequency lesion to the control group but in actual will be done just to induce the sham or placebo effect for studying the changes in emotional behavior to the lesion. Hence, the experiment will require a sham lesion control group.
