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Olegator [25]
2 years ago
12

The ____ consists of all existing matter, energy, and space.

Biology
1 answer:
Anna [14]2 years ago
5 0

the universe consists of all existing matter, energy, and space.

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A protein's alpha helices and beta sheets fold together to create an overall shape at the _____ level of protein structure.
bogdanovich [222]
Tertiary structure :))))
3 0
2 years ago
A slice of pizza has 500 kcal. If we could burn the pizza anduse all the heat to warm a 50-L container of cold water, what would
kap26 [50]

Answer:

c. 10°C

Explanation:

Given that: A slice of pizza has 500 kcal.

That is to say Q = 500kcal

If the pizza was burned and all the heat were used to warm a 50-L container of cold water,

what  would be the approximate increase in the temperature of the water?

We were also being told to note that; A liter of cold water weighs about 1 kg.

i.e 50-L container weighs about 50kg (mass)

∴ Since;

Q= 500kcal,

m = 50kg; &

the specific heact (c) = 1

we can find the approximate increase in the temperature of the water by using the formula:

Q = mcΔT

ΔT = \frac{Q}{mc}

ΔT = \frac{500}{50*1}

ΔT = 10°C

7 0
2 years ago
Each of 100 laboratory rats has available both plain water and a mixture of water and caffeine in their cages. After 24 hours, t
olchik [2.2K]

Answer:

C. About 18 percent of the variation in blood pressure can be explained by a linear relationship between blood pressure and caffeine consumed.

Explanation:

Here, r = 0.428

∴ We can say it will give a positive curve, as 0.428 indicates it is a positive correlation.

Though the amount of correlation is low, still it is positive and more than 0.4

So, nearly about 18% of the variation in the blood pressure can be observed by the consumption of caffeine water. As consumption of caffeine water and blood pressure is both increasing so we can say that r= 0.428 will give a positive linear curve.

 

3 0
2 years ago
Adjacent plant cells have narrow channels called plasmodesmata that pass through the cell walls of the connected cells and allow
tatuchka [14]

Answer:1. They allow the movement of molecules from one cell to another, enabling communication between cells.

Explanation:the cell wall is a rigid and cellulose containing wall, which surrounds the plasma membrane.

During lignification, small pores appear on the cell wall through which cytoplasmic strands extend.these pores are the plasmodesmata,which provides connections between plant cells

5 0
2 years ago
Read 2 more answers
Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a
Ne4ueva [31]

Answer:

Explanation:

This question is incomplete. However, what is described in this question is a method of DNA damage repair mechanism. The method described is called base excision repair. Generally, glycosylases play important roles in base excision repair (as they detect and remove these damaged bases).

One thing that can be considered while identifying the bond to be broken is the codon that will be formed after the removal of base. If this codon (a three base sequence) will still produce the same protein as when a normal cytosine was present.

NOTE: During this base excision repair, a glycosylase will detect and remove the damaged cytosine. Once removed, the remaining nucleotide backbone (of the removed cytosine) is also removed and the gap is filled and sealed by other enzymes in this repair mechanism.

6 0
2 years ago
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