The blank is going to represent marijuana, LSD,PCP, and ecstasy. sited by google. hope that helped
Heat, light, sound and fire may have been involved when the Bunsen burner was lit with the spark from the Van de Graaff generator. Bunsen burner is a common device in the lab.
<h3>What is a Bunsen burner?</h3>
Bunsen burner is a laboratory device (gas burner) that generates a single open gas flame.
The gas most commonly used in Bunsen burner is generally natural gas, i.e., methane gas.
This device (Bunsen burner) can be used to generate a heat source during a lab experiment.
Learn more about the Bunsen burner here:
brainly.com/question/10281181
In the science world today, both the natural regeneration and stem cell therapy can be used to generate new cells and both processes have thier advantages and disadvantages. The following are the advantages of natural regeneration over stem cell transplants:
1. Natural regeneration is cheaper compares to stem cell transplant.
2. The process of natural regeneration is safe and does not involve the fear of unknown, long time effects like that of stem cell transplant.
3. Naturally regenerated cells can not be rejected by the patient's body but a stem cell transplanted cell can be rejected by the patient's body.
Answer:
The incorrect conclusion is D that is finding burial sites of <em>Homo habilis </em>on different countries.
Explanation:
<em>Homo habilis</em> are called as stone age human that are appeared between 2.1 and 1.5 million years ago and they use tools that are made up of stone which they use to kill the animals. They are called as scavengers and they didn't have any knowledge about bury the dead bodies.
<em>Homo neanderthalensis</em> are the extinct species of human that appears at about 40,000 years ago who bury the dead body but they became extinct due to competition and they did't able to adopt the modern techniques.This was the prime factor that they became extinct.
A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
