1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
attashe74 [19]
3 years ago
15

What is the most common source of contamination with e. coli?

Biology
1 answer:
Tcecarenko [31]3 years ago
5 0
The most common source of contamination with E.coli is by eating contaminated food like meat and eggs.
You might be interested in
In a population of plants, the allele for long stems (S) is completely dominant over the allele for short stems (s). If 35% of t
Sergio [31]

Answer:

The correct answer would be 48 percent.

It can be solved by using the Hardy-Weinberg equation.

p² +  2pq+ q²  = 1

p + q = 1

where, p² represents homozygous dominant's frequency that is, SS in this case,

q² represents homozygous recessive's frequency that is, ss in this case,

2pq represents heterozygous dominant's frequency that is, Ss in this case.

p represents dominant allele's frequency and q represents the recessive allele's frequency.

Now, the percentage of homozygous recessive or short stems is 35%. Therefore, the frequency of homozygous recessive would be 0.35.

Thus, the value of q² = 0.35

So, q = \sqrt{0.35} = 0.59 which is approximately equals to 0.6.

As p + q = 1 so, q = 1 - 0.6 = 0.4

The frequency of heterozygous (Ss) = 2pq = 2(0.6)(0.4) = 0.48

Hence, the frequency of heterozygous would be 48 percent.

8 0
3 years ago
Saturated fatty acids have
AveGali [126]
The correct answer is:  [A]:  "no double bonds" .
_____________________________________________________
<u>Note</u>:  In saturated fatty acids, there is no double bonding between the molecules—which leaves a "gap" ; and saturation with "hydrogen (H)" atoms occur.
_____________________________________________________
5 0
3 years ago
Suppose that an adult black bear adds 50 pounds of fat in order to survive while hibernating through the winter. how much glycog
NemiM [27]

Answer: The correct answer would be 112.5 pounds

Explanation:

Let us first covert the pound into grams. We know that 1 pound is equal to 453.59 grams.

Thus, 50 pound of fat = 50 x 453.59 = 22,679.5 grams.

We know that, 1 gram of fat releases 9 Kcal of energy. Thus, total energy produced by 22679.5 grams = 9 x 22679.5 = 204,115.5 Kcal

Glycogen is carbohydrate thus, it will produce 4 Kcal of energy per gram.

Thus, 4 x C = 204,115.5 (where C is the grams of glycogen)

⇒ C = \frac{204115.5}{4}

⇒ C = 51,028.875 grams

Using 1 pound = 453.59 grams, we con convert 51,028.875 grams into pounds:

453.59 = 1

1 = \frac{1}{453.59}

51,028.875 = \frac{1}{453.59} x 51028.875

= 112.5 pounds

Thus, 112.5 pound of glycogen would be needed to produce the same amount of energy as produced by 50 pounds of fat.

8 0
3 years ago
When do cells duplicate their DNA?
Leno4ka [110]

Answer:

dont know raadi solve your self

4 0
2 years ago
Read 2 more answers
Each element on the periodic table has a unique​
Anika [276]

Answer:

atomic number or atomic mass

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which shows the correct order of processes the body undergoes to maintain blood glucose levels?
    13·1 answer
  • What causes an object with mass to have weight?
    14·1 answer
  • Carbon is cycled back to the carbon dioxide pool by
    10·1 answer
  • What does the circulatory system do??
    15·2 answers
  • A mother, father, and son live together in the same house. The mother passes a cold to her son. The son then passes the cold to
    10·1 answer
  • Explain how ionic balance is maintained in the human body​
    8·2 answers
  • Which statement explains the difference in chromosomes in fruit fly (2n=4)?
    14·1 answer
  • What is evolution?
    12·1 answer
  • Explain how random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism
    15·1 answer
  • What does the color and smooth texture of this rock reveal about its formation?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!