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Scrat [10]
3 years ago
8

Use 2-3 sentences to describe what would if populations never evolved?

Biology
1 answer:
s2008m [1.1K]3 years ago
8 0

Answer: Well, populations never evolved than one human might have gone extinct due to many different viruses and sicknesses but other animals might not be extinct.  If populations never grew more then that would be because we could not overpower dome viruses. If we never. If we never evolved animals like a Carrier pigeon would not be dead or extinct today.

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Explain how a crime lab could use paper chromatography to determine if lipstick found at a crime scene matched the lipstick of a
FromTheMoon [43]

Explanation:

The lipstick from the crime would be crushed and dissolved in an appropriate liquid solvent. The lipstick would then be placed in one of the ink spots on the starting / base line of the paper. Another spot would be created for the lipstick with which it is being compared with.

The paper chromatogram would then be placed vertically on a solvent that acts as the mobile phase. After some time, when the solvent reaches the solvent front  of the paper chromatography, by capillary action, the chromatogram can be removed and left to dry.

Bands will have appeared on the chromatography paper formed from the different components of the lipstick. The bands of the lipstick from the crime scene and that with which it is being compared to are observed. If the bands are all aligned, horizontally, then this means it is a complete match. The lipstick must have been the same used at the crime scene.

Learn More:

For more on paper chromatography check out;

brainly.com/question/13232854

brainly.com/question/364792

#LearnWithBrainly

7 0
3 years ago
Is salt a solid or a liquid
tekilochka [14]
Salt is a solid by itself. With water, it forms a liquid. 
6 0
3 years ago
If you ate a spoonful of peanut butter for breakfast, the majority of the energy would come from the ________in the peanut butte
Minchanka [31]

Answer:

: High in Good Fats, Protein,

Explanation:

Peanut butter is rich in heart-healthy fats: High in Good Fats, Protein, and Satisfaction

3 0
2 years ago
Multiple select. Select the phyla of fungi you will be studying in this section. Chytridiomycota
WINSTONCH [101]

Answer:

  1. Chytridiomycota
  2. Zygomycota
  3. Basidiomycota
  4. Ascomycota

Explanation:

I just took a quiz, and this was correct!

6 0
2 years ago
Know how to use a food web to determine the number of food chains an organism is a part of.
Gennadij [26K]

Answer: ok

Explanation:

I know how to use the food web to determine......

3 0
2 years ago
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