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]
1 year 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]1 year 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 Fast Plants® shown below follow the same genetic rules as the plants in the Gizmo. What is wrong with this picture?
Lemur [1.5K]

Answer:

A

Explanation:

6 0
1 year ago
which of the following is a negative effect of the EPA's decision to monitor six greenhouse gases under the clean air act
frozen [14]
Because green house air is like carbon dioxide and is toxic for people to breathe in but they want to put it under an act that says it will cause u no harm
4 0
1 year ago
Compare and contrast safe practices used during field investigations with those used in laboratory situations.
mihalych1998 [28]

Answer:

in the field you know how to swim and dive, have appropriate diving equipment, and appropriate diving certifications. as in the lab I wore my apron, latex gloves, and safety glasses. I'm if this is wrong I used google

4 0
2 years ago
Choose all the true statements about protein digestion and hydrolysis.
klio [65]

Answer: The true statements about protein digestion and hydrolysis are;

1. Hydrochloric acid in gastric juices cause protein denaturation.

2. In small intestine trypsin attacks peptide bonds.

3.free amino acids are absorbed by the intestinal wall.

Explanation:

Protein digestion occurs in the duodenum and stomach and it is the breakdown of proteins to amino acids by action of Enzymes like trypsin, pepsin.

Protein is digested by the hydrolysis of carbon-nitrogen bond. Mechanical digestion of protein begins in the mouth and it continues in the small intestine and stomach.

Chemical digestion starts in the stomach where by hydrochloric acid in the gastric juice denatures the protein and convert pepsinogen to pepsin enzyme which convert the protein in food to peptides. Trypsin attacks the peptide bond that involves the carboxyl group which breaks it to polypeptide. Exopepdisases and dipeptidases breaks it down to amino acids. The amino acids released by protein digestion is then absorbed by the intestinal wall

4 0
2 years ago
Both the full body plate type and the half body plate trait are also present in an ocean near the lake. Where would you expect a
Mrrafil [7]
Full body plate trait in ocean
6 0
2 years ago
Read 2 more answers
Other questions:
  • 45. Which observation of dihybrid crosses led to Mendel's law of independent assortment?
    13·1 answer
  • A land-dwelling organism, A, and an aquatic single-celled organism, B, are represented below.
    7·1 answer
  • The image below represents the Sun on January 1 seen from North America. The letters represent the directions (east, south, and
    10·2 answers
  • Dr. Bob hypothesizes that drug X causes cuts to heal more quickly. He performs a medical experiment on a group of 100 people and
    5·2 answers
  • sometimes errors occur during transcription or translation. Examine the codon chart on the previous page.Notice that each amino
    12·1 answer
  • A pregnant woman complains, "i have had morning sickness for one week, which caused me to eat less. i am experiencing irritabili
    12·2 answers
  • How do bicarbonates influence biotic factors?
    15·1 answer
  • Why should you have an Emergency Action Plan? Select all that apply. a. Seconds can mean the difference between life and death f
    13·1 answer
  • In the stable form of protein, the ________ is generally oriented to the interior of the protein molecule.
    14·1 answer
  • Drag each ore to the metal it produces. Answer may be used more than once.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!