Answer:
False
Explanation:
A theory isn't proven like a law, but many scientist revised and approved of if it.
Answer:
The four elements are oxygen, hydrogen, carbon, nitrogen.
So it will be O A.N2.
Explanation:
They are versatile elements, capable of producing a vast array of chemical compounds, but it also has to do with the fact that they are among the most abundant elements in the universe.
Answer:
There is no variation occurs in the offspring produce from male Drosophila.
Explanation: Crossing over is the key to variation in the organisms because parts of two different chromosomes are replaced with each other. This crossing over only exists in the sex cells or meiosis of cell division. In meiosis, the cell is divided into four daughter cells having half number of chromosome. These cells are not identical to each other due to crossing over.
Answer:
The control group consists of elements that present exactly the same characteristics of the experimental group, except for the variable applied to the latter. This group of scientific control enables the experimental study of one variable at a time, and it is an essential part of the scientific method.
