Just draw a dot and cross diagram showing covalent bonding between sodium and chlorine.
1. AUG GAC CUA UAG
4. codons in mRNA .... and Triplets in DNA
Answer:B
Explanation: Using Chemicals or pesticides would make it so that the invasive species would adapt to the new chemical, making it even harder to get rid of them. It’s helpful for the time being, however it doesn’t help for the long term. Introducing a predator, is like using 1 new species, to get rid of another new species. If you get rid of the invasive species, you still have to deal with the new predator. Hunting competitions can help, however they would only really work for animals. I don’t think hunting for plants would arouse much interest. Preventing them from invading a new environment would make it so that the damage will never be done...
a. What is a star's spectrum?
A star's spectrum refers to the <em>"amount of light"</em> that stars they give off according to varying wavelengths. Since we cannot tell the amount of light a star gives off quantitatively from Earth, we can differentiate them according to how bright they appear.
b. Which spectrum is most common in stars?
Stars are classified according to their spectra <em>(elements in the star)</em>. They are classified into 7 types <em>(O, B, A, F, G, K and O). </em>The most common type is M, however, it gives off a dim light.
c. How can it differ from start to star?
Although stars follow a continuous spectrum, the spectra of a star differs from each other because <u>they do not give off the same amount of energy at the different wavelengths. </u>
d. What does the spectrum tell us about the star?
The spectrum can tell the<em> surface temperature</em> of the star. This means that a blue star (we often see it as a white-colored star from Earth) is hotter than that of a yellow star. A red star is considered the coolest star among all.
The spectrum of stars also allows the astronomers to study composition of the stars according to their <em>wavelengths.</em>