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Elza [17]
3 years ago
15

During the yeast fermentation experiment, what change indicates yeast are fermented

Biology
1 answer:
Pavel [41]3 years ago
8 0
All nasty yeast is nasty 
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Which commodity is used most heavily in industrial economies steel plastic or wood
stira [4]
Wood should be correct
4 0
3 years ago
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A marine ecologist counts the number of crabs in three different intertidal regions that are each two hectares. The crab counts
romanna [79]

Answer:

Density is nearly 3 cabs per hectare

Explanation:

Given -

There are three three intertidal regions.

Area of each intertidal region is 2 hectares.

Number of crab in the intertidal regions are as follows -

Intertidal region I - 7

Intertidal region I - 2

Intertidal region I - 6

Sum of crabs in all three regions is equal to

7 + 2+ 6\\= 15

Total area of all three intertidal regions is equal to

2 + 2+ 2\\= 6 hectares

Now density per hectare is equal to total population of crab divided by total area of all the three intertidal regions

Density = \frac{15}{6} \\= 2.5

Density is nearly 3 cabs per hectare

5 0
2 years ago
Select all that apply. Pathogens include:
salantis [7]
<span>Protozoa 
Viruses 
Algae 
Fungi 
Bacteria</span>
5 0
3 years ago
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What phase of mitosis is shown?<br>​
gogolik [260]

Answer:

During mitosis, the two sister chromatids that make up each chromosome separate from each other and move to opposite poles of the cell.

Explanation:

i took notes from last quiz

6 0
3 years ago
You have a 15kb plasmid. EcoRI cuts the plasmid into 7kb and 8kb pieces, and BamHI cuts the plasmid into 1kb and 14kb pieces. If
Harman [31]

Answer:

a. Bands at 1kb, 6kb and 8kb

Explanation:

The EcoRI and BamHI are the restriction enzymes which cut the DNA sequence especially a plasmid at specific sites called the restriction sites.

The restriction enzymes produces bands of specific length therefore these restriction enzymes are used to estimate the approximate length of the DNA.

In the given question, the

1. EcoRI- produces two strands of 7 kb and 8 kb

2. BamHI- produces two strands of 1kb and 14kb

This shows that the length of DNA sequence is 15kb

But when the DNA strand are digested with both the enzymes simultaneously then it will produce three bands as:

i) 14 kb can be broken down in 2 bands of 6 kb and 8 kb

ii) 1 kb band is already produced by the Bam HI.

This shows that 1+6+8= 15 kb

Thus, Option-A is correct.

5 0
2 years ago
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