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Scorpion4ik [409]
3 years ago
11

List 3 variable that Anurag should keep the same

Biology
1 answer:
Makovka662 [10]3 years ago
5 0

Answer:

seawater ,upside-down funnel and seaweed

Explanation:

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If a researcher has a DNA sample with a concentration of 0.6 micrograms per microliter, how many microliters of DNA must be tran
Art [367]

Answer:

0.325 microliters

Explanation:

1 microgram = 1000 nanograms

DNA sample concentration= 1000 X 0.6 = 600 nanograms / microliters

We need a total of 50 microliter reactions, and the concentration should be 3.9 nanograms per microliter.

So, we need total 50 X 3.9 = 195 nanograms in 50 microliters.

Therefore, it required 195 / 600 = 0.325 microliters of DNA sample to be transferred.

7 0
3 years ago
How is energy related to the change of state
Blababa [14]

Answer:

Atoms lose energy as a gas changes to a solid. How is energy related to the change of state represented by the model? Atoms gain energy as a solid changes to a liquid.

Explanation:

3 0
3 years ago
Which first-line defense system uses acids to kill pathogens?
Helen [10]
I think it’s respiratory but I’m not sure
8 0
3 years ago
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the is the thin layer of the mucosa responsible for pulling the mucosa into its many folds which increases the surface area of t
krek1111 [17]

yes, Muscularis  mucosa - The stomach and small intestine's mucosa are pulled into undulating folds by a thin layer of smooth muscle that is constantly tensed. The surface area that is available for digestion and absorption is significantly increased by these folds.

The submucosa is located directly beneath the mucosa, as its name suggests. It joins the underlying muscularis to the overlaying mucosa by way of a large layer of dense connective tissue. It has blood and lymphatic vessels (which carry nutrients that have been absorbed), as well as a few submucosal glands that secrete digestive juices. Additionally, it functions as a passageway for the submucosal plexus, a densely branched network of nerves.

These layers compress to encourage mechanical digestion, expose more of the food to the chemicals that aid in digestion, and transport the food along the canal.

To learn more about mucosa:

brainly.com/question/14249623

#SPJ4

4 0
2 years ago
Please help me , Describe how bonds contain energy and what the energy is used for
astraxan [27]

Answer:

Chemical bonds contain potential energy.

Explanation:

Chemical bonds always contain potential energy. The atoms of the bond want to move to a lower energy to become more stable.. The energy for breaking bonds only comes when stronger bonds are formed.  This energy is used to tear apart the bonds holding the Hydrogen atoms together. The strength of the covalent bonds depend on the overlap between the valence orbitals of the bonded Atom.

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