Answer:
B
Explanation:
Nerve cells can carry signals and connect all parts of the body to the brain
Answer:
The atomic number of phosphorus is 15. It has zero charge because it has 15 electrons.
Answer: D. His conclusion is flawed because he did not test the students to see if their bodies contained metal arsenic.
Explanation:
According to the given situation, student has tested seven different areas around the school to determine the presence of arsenic in the soil and also found the presence of arsenic in the school system. But has not studied the presence of arsenic in the students to support the fact that the school students are also affected by arsenic. So, conclusions based on the presence of arsenic in the soil and the system is inconclusive for the present study.
Answer:
Some important rules of light are:
- the incident ray,normal ray and the reflected ray lie in the same point.
- angle of incidence is equal to angle of reflection<u>.</u>
<u>.The Angle When It Leaves Is Larger Than The Angle When It Hits. The Angle Is Smaller In The Medium That Has The Higher Index Of Refraction.</u>
Answer:
C. Autotrophs (plants) are organisms that can produce their own food and heterotrophs (animals) are organisms that must consume or break down other organisms for food.
