Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
In order, what are the top elements in the universe that correspond to the same order in which they occur in humans? |
1. Hydrogen 2. Oxygen 3. Carbon 4. Nitrogen |
|
|
Why is Hydrogen the most abundant element in the universe? |
It only has 1 proton, smallest element |
|
|
If we were to discover alien life, what is the most common trait that has in different species at different times( which means that aliens would have a high probability of having this) How many times has this feature evolved? |
1. Eyes 2. 40 times |
|
|
What do we call this type of evolution, we're the same trait evolves at different places at different time |
Convergent |
|
|
What makes carbon so special, and so Importent to life
|
It combines with almost anything makes up the universe and makes complex molecules |
|
|
What kind of Things is carbon used to make? |
Proteins Dna bases Carbohydrates Lipids |
|
|
Why won't other elements in group 14 work the way carbon does |
It's not abundant in the universe Doesn't form chains |
|
|
What do amino acids make |
Proteins |
|
|
What is unusual about the amino acids that make up our proteins |
They r left handed |
|
|
What kind of light forms left handed moleciles |
Polarized |
|
|
What kind of light does our sun emit |
Non polarized lifht |
|
|
Why does that make it unlikely that our amino acids developed earth? |
Amino acids are left handed which aren't made by the sun, made by polarized light |
|
|
The emission spectrum is known as an element's |
Fingerprints |
|
|
When energy goes into an Adam, the electrons jump to an excited state. When they return to their original energy level( ground state) , the Atom returned some of that energy in the form of
|
Lighr |
|
|
The amount of energy it returns will decide the -------- of light it emits |
Color |
|
|
When an object, like a star is moving away from you, the absorption lines move to the |
Right |
|
|
When an object is moving toward you, the lines move to the |
Left |
|
|
Light moving away from you is callwd |
Red shifted |
