Answer: Agriculture
Explanation: Mesoamerica is a region in North America that extends from Central Mexico through Belize, Guatemala, El Salvador, Honduras, Nicaragua and northern Costa Rica.
As examples of Mesoamerican cultures we can mention the Maya, Aztecs and Olmec, all of which had agriculture based cultures.
Answer:
first one
Explanation:
Surely, Centers for Disease Control in the Dept of Health and Human Services
<span>Which statement about the rise of the Egyptian civilization is false?
second one
</span>
Answer:
resistance stage
Explanation:
General Adaptation Syndrome (GAS) is the process developed by Hans Selye.
GAS is a process divided into three stages of physiological changes. Selye developed this theory while experimenting on rats. The rats were put under stressful situations after which physical changes occur in them.
The stages in GAS are:
- Alarm reaction stage
- Resistance stage
- Exhaustion stage
In the Resistance stage, the levels of endocrine, hormones, heart rate, and blood pressure is comparatively low from the first stage of GAS i.e. alarm reaction stage. <u>In this stage, heart rate and blood pressure starts becoming normal but still not normal. </u>
So, the correct answer is the Resistance stage.
"The mass of Substance C is five times the mass of Substance B", the given statement is correct.
Answer: Option D
<u>Explanation:</u>
As Jessie added 16 gm. of Substance A to 4 gm. of Substance B Obtained certain amount of Substance C which can be calculated as follows:
amount of Substance C = Substance A + Substance B = 16 + 4 = 20 gm
Therefore, 20 gram of Substance C was obtained. Here, fourth statement is correct which says the mass of Substance C ifs five times the mass of Substance B to justify this, see the below:
