Answer:give me brainliest
Explanation:
A combination of the Q wave, R wave and S wave, the “QRS complex” represents ventricular depolarization. Ventricular depolarization occurs in part via an accessory pathway (AP) directly connecting the atrium and ventricle and thus capable of conducting electrical impulses into the ventricle bypassing the AV-His Purkinje conduction system.This term can be confusing, as not all ECG leads contain all three of these waves; yet a “QRS complex” is said to be present regardless.
Answer:
compound microscope
Explanation:
they are illuminated and the image seen with this type of microscope is two-dimensional. this microscope is the most commonly used this microscope is the most commonly used you can view individual cells even living ones
Answer: ectotherms do not experience homeostasis whereas endotherms do.
Explanation: ectotherms cannot regulate their own body temperature which is why they are known as cold blooded. They regulate temperature by using their environment such as basking in the sun. Endotherms need homeostasis to regulate their body temperature as when they become cold their body burns calories to generate heat.
Answer:
B. Esophagus
Explanation
You digest food. I goes into your mouth down your esophagus and into your stomach that food goes on a long journey down. And you know what happens
In the 1920s, Walter Cannon discovered that emotion-arousing incidents trigger an outpouring of stress hormones from the adrenal glands. One of the stress hormones is Cortisol. Cortisol is a steroid hormone, in the glucocorticoid class of hormones. When used as a medication, it is known as hydrocortisone. It is produced in humans by the zona fasciculata of the adrenal cortex within the adrenal gland. It is released in response to stress<span> and low blood-glucose concentration.
The missing words from your question were </span>stress hormones. I hope this is the answer that you were looking for.
