A scientist conducts a test and finds out that the LD50 of a certain chemical is 20 mg per kilogram. Explain what this means.

1 answer:

7 0

The short answer is: The scientist means that a dose of 20 mg per kilogram is enough to kill one half or fity percent of the animals used in the test. LD stands for leathal doseage. The 50 means 50 percent. Subsequently a dose of 20 mg per killogram has a lethal dose that will kill 50% of the test subjects.

You might be interested in

Bacteriocins and defensins are types of which of the following?

scoundrel [369]

Answer:

Antimicrobial peptides

Explanation:

Antimicrobial peptides may be defined as the important part of immune system that provide protection against the pathogens. These peptides are also known as host defense peptides.

Defensin and bacteriocins are the antimicrobial peptide. Defensin are cysteine rich protein that provide protection against bacteria, virus and cancer cells. Bacteriocin peptide is present in bacteria that inhibit the growth of the same strains of bacteria.

Thus, the correct answer is option (4).

3 0

4 years ago

WILL GIVE BRAINLIEST

givi [52]

Answer:

D. any natural process that threatens human property and human lives.

8 0

3 years ago

What is the genotype percentage of a blonde haird person and a brown haired homzygous?

balandron [24]

Answer:

what are the optionnnnnn???

5 0

4 years ago

Select the TWO correct statements below regarding the two

olga nikolaevna [1]

Answer:

<h2>duofu9fhodits</h2>

Explanation:

<h2><em><u>dyidyiditcgksgztidulf96dhltizitxtisitxitsitst7dyid75figd7tydyixuofiy7d96dyidiydiydjgdiyd</u></em></h2>

8 0

3 years ago

Brian is a forensic investigator studying a tool mark on a door jam. He has gone through the steps of collecting the tool mark e

julsineya [31]

Answer:

I got you my mans

Explanation:

Identify and Describe

vvvvvvvvvvvvvvvvvvv

Photograph

vvvvvvvvvvvvvvvvvvv

Make a comparison cast

vvvvvvvvvvvvvvvvvvv

Compare under a microscope

5 0

3 years ago