answer.
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
stealth61 [152]
2 years ago
14

A sample of well water is tested for its bacterial content in a plate count assay. A one-milliliter sample of the water is dilut

ed in a 1:10 dilution series. One milliliter of the fourth dilution tube is plated in a pour plate. After incubation, the plate has 83 colonies, indicating that the original water sample contained_________.
Biology
1 answer:
Sholpan [36]2 years ago
6 0

Answer:

The original water sample contains 830,000 cells per milliliter.

Explanation:

A sample of well water is tested for its bacterial content in a plate count assay. A one-milliliter sample of the water is diluted in a 1:10 dilution series. One milliliter of the fourth dilution tube is plated in a pour plate. After incubation, the plate has 83 colonies, indicating that the original water sample contained 830,000 cells per milliliter.

You might be interested in
The farming methods promoted by the California Ricelands Habitat Partnership are best described as beneficial to both farmers an
Scilla [17]

Answer:

b. Foraging birds eat left over rice and trample the ground making trilling unnecessary.

Explanation:

The California ricelands Habitat Partnership is a partnership between rice farmer and conservation group that will promote long term sustainability of wetland species.

This farming method is beneficial to both the farmers and the species. The wetland species such as foraging birds will benefit by coming to eat the left over rice after the farmers have harvested the rice.

As the birds eat the rice, they trample the grounds making trilling unnecessary hence benefiting the rice farmers.

7 0
2 years ago
Read 2 more answers
Which of the following electrolytes is concentrated primarily outside the body’s cells? a. Potassium b. Magnesium c. Phosphate d
Furkat [3]

Answer:

The answer is D. Calcium

Explanation:

The Electrolyte, according to the reference table in the question, which focuses mainly outside the body's cells is Calcium. Calcium has a value of 8 to 10 mEq / l in the extracellular fluid and 0.01 mg in the intracellular fluid. It is an electrolyte with positive charge: Ca ++.

7 0
2 years ago
PLEASE RESPOND ASAP
stich3 [128]

Answer:

Weight gain and depression are symptoms caused by imbalance of pituitary and adrenal glands and the cortisol hormone.

Explanation:

The pituitary gland is responsible for the overall functioning of the body since it produces a variety of hormones. It is very small in size and is also known as the 'master gland'. It is made of two parts- <u>anterior pituitary gland and posterior pituitary gland</u>. The pituitary gland and its functions are controlled by the hypothalamus.

The anterior pituitary secretes hormones which act on adrenal glands, thyroid, testes and ovaries. The hormones produced are <em>TSH, Prolactin, Luitenizing Hormone, Cortisol, Testosterone</em>, etc.

Cortisol is produced by the <u>adrenal gland</u> under the command of <em>pituitary gland</em>. Cortisol helps in <em>regulating blood sugar, blood pressure</em> and helps in reducing inflammation. Any imbalance of adrenal gland will cause an increase or decrease in the production of cortisol. The symptoms produced on the imbalance are:

  • Obesity in upper body
  • High blood pressure
  • Mood swings, depression and irritability
  • Acne and other skin problems.

8 0
2 years ago
Your mother has an unlabeled bottle of clear liquid in the refrigerator. You ask your mother about it, and she tells you that sh
erik [133]

Answer:

less than 7

Explanation:

7 0
2 years ago
Read 2 more answers
A scientist publishes a paper that states that changes in the levels of gases in the atmosphere of a moon of Saturn indicate tha
Ber [7]
The correct answer for the given statement above would be option D. The statement that correctly answers whether the question of alien life on the moon is scientific is, the question is scientific because it is testable and verifiable. Testable and verifiable in a way that it is possible to conduct tests or experiments to prove whether the given claim is true or not. A scientific statement is based on objectivity. As long as it is not based on personal interests, values, community bias or personal perspectives, it is considered as a scientific statement.
9 0
2 years ago
Read 2 more answers
Other questions:
  • Penny measured the time that it took her rat to run through a maze. She conducted the experiment 10 times and recorded the set o
    10·2 answers
  • Mineral A is purple. Mineral B is black. Both minerals leave the same color streak. Which of the following statements is true? B
    12·2 answers
  • Where do lipids, a class of organic compounds, fit on the hierarchy of biological organization? select the correct box?
    12·2 answers
  • Which enzymes in the citric acid cycle catalyze oxidative decarboxylation reactions?
    6·2 answers
  • Tom is looking to lose weight by cutting carbohydrates out of his diet, particularly from regular sodas, but has a negative atti
    6·1 answer
  • The movement of fluids between cellular compartments ________. the movement of fluids between cellular compartments ________. is
    10·1 answer
  • Look at the data related to honey bee population losses between 2006 and 2013 (Figure 1). Expand on the data. How would you revi
    9·2 answers
  • To visualize the structure of DNA, which has a width of 10 nm, which microscope would be best
    5·2 answers
  • Place the particular characteristic into the correct corresponding type of dna replication. each characteristic may be used once
    6·1 answer
  • If you wanted to stay 20 feet below the surface of the water, what kind of buoyancy would you need to have? Positive, Negative o
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!