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muminat
2 years ago
10

Which describes the correct order of steps to be taken when casting a soil impression?

Biology
1 answer:
uranmaximum [27]2 years ago
4 0
Photograph the impression, frame the impression, pour the cast, remove the cast is the one that describes the correct order of steps to be taken when casting a soil impression. The correct option among all the options that are given in the question is the second option or option "B". Casting is a great method for preserving some kind of impression to be looked at in the future.
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When you drink sea water, what type of solution do you expose your cells to?
Alex Ar [27]
The answer should be 1, hypertonic. 

Seawater is highly concentrated in salt, and with that being said, it has a low concentration of water molecules. 

Hypertonic means the solution has a lower water concentration than the other side (cell), vice versa for hypotonic, a high water concentration than the other side of the solution, and for isotonic, it means that both sides of the solution have the same water concentration. 

So, the answer should be 1, hypertonic. 

In addition, when your cells are exposed to hypertonic solution, the water molecules in your cells will start flowing out of the cells, to the outside, due to the difference in water concentration leading to osmosis. Your cells will lose so much water that they may even shrink!
7 0
3 years ago
Shelly is a 46-year-old woman whose menstrual cycle has changed and is now more irregular and infrequent. which term best descri
WITCHER [35]
I have no clue what this means
5 0
3 years ago
Why do organisms without oxygen need to convert pyruvate to lactate?
IrinaK [193]

The question is incomplete. The complete question is:

Question: Why do organisms without oxygen need to convert pyruvate to lactate?

A) because pyruvate is toxic to the cells

B) in order to regenerate NAD+

C) in order to use lactate in the citric acid cycle

D) because lactate is needed to produce ATP

Answer:

B) in order to regenerate NAD+

Explanation:

Kreb's cycle and electron transport chain (ETC) are the aerobic stages of cellular respiration. ETC regenerates NAD+ and FAD+ by oxidation of NADH and FADH2 produced during glycolysis and Kreb's cycle. Here, oxygen serves as the terminal electron acceptor.

Glycolytic reactions use NAD+ as an electron acceptor and produce NADH. Therefore, a constant supply of NAD+ is required to sustain glycolysis. In absence of oxygen, ETC cannot occur and organisms convert pyruvate into lactate. Pyruvate is reduced in lactate and NADH serves as the electron donor. Thereby, lactate fermentation regenerates NAD+ to continue the process of glycolysis.

3 0
3 years ago
Animal Length of Digestive System Diet Category Animal Mass Koala 305 cm Herbivore 10 kg Dog 135 cm Carnivore 11 kg Rabbit 272 c
lukranit [14]

Correct me if I'm wrong but I'm sure the answer is C because according to the data each herbivore has a larger digestive system

4 0
3 years ago
5. Which is the first step of the scientific method?
Arada [10]

Answer:

The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false. Step 2. Form a hypothesis.

Explanation:

8 0
3 years ago
Read 2 more answers
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