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
bogdanovich [222]
3 years ago
8

A scientist studied the effect of several new drugs (antibiotics x, y and z) to kill anthrax bacteria growing on petri plates wi

th proper nutrients. the treatments in this study, applied to the bacterial media to compare with the currently used antibiotic are as follows: antibiotic x antibiotic y antibiotic z water currently used antibiotic which treatments are considered as negative and positive controls?
Biology
1 answer:
Lina20 [59]3 years ago
4 0

Negative control is the experimental setup in which no response is expected or the control in which the result is bound to be negative.

Positive control is the experimental setup in which a response is expected or the control in which the result may be positive.

So our,

Positive controls are: Currently used antibiotic

Negative control is: Water

Currently used antibiotic affects the bacteria whereas the water does not. Antibiotic X,Y,Z treatments are being checked for their activity and effect on the bacteria.

You might be interested in
Global Warming is not a thing!
Aliun [14]

Answer:

This is not an answer

Explanation:

3 0
3 years ago
Read 2 more answers
How do the various part of the body work together when we eat something
gulaghasi [49]

Answer:

Your digestive system absorbs water and nutrients from the food you eat. Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin.

Explanation:

6 0
3 years ago
Many athletes and administrators fear the widespread use of gene doping—the use of gene therapy to modify genes that improve ath
lyudmila [28]

YES THAT FIRST SENTENCE IS VERY TRUE.YES, GENE DOPING IS USED BY MANY ATHLETES AROUND THE WORLD.IT CAUSES SEVERAL EFFECTS LIKE:
 a) increased extraordinary hematocrit
 b) increased thrombotic activity
 c) autoimmune anemia,ETC.
 ANY TWO GENETIC MODIFICATIONS THAT WOULD IMPROVE THE PERFORMANCE OF AN ATHLETE ARE:
 a.gene therapy should be given to produce more hormones in the body.
 b. gene therapy is given to athletes because they have been used to study and model cancer (the oncomouse), obesity, heart disease, diabetes, arthritis, substance abuse, anxiety, aging and Parkinson disease to check for the athletes.
3 0
3 years ago
The picture below shows a floodplain alongside a river channel. A floodplain is a flat landform created by deposition on the bot
Artist 52 [7]
The appropriate answer is D. a river floods over its channel banks and deposits sediment on the wide valley bottom. 

Flood plains usually develop along the lower course of the river. The lower course has a gentle gradient and so the flow of water is not fast and therefore the bed load of the river gets deposited. Rivers carry materials such as boulders, pebbles, gravel, sand, silt and clay. The larger size materials will get deposited upstream while the finer material will travel to the lower course. 
The glacier melt each year increases the volume of the river so it will overflow its banks and deposit materials in layers on the flood plains. Materials on the flood plain are usually fine such as sand and silt. 
4 0
3 years ago
Read 2 more answers
Choose the CORRECT statement about cell transport below.
Elza [17]

Answer: O Diffusion moves particles across the cell membrane from areas of high concentration to

areas of low concentration

Explanation:

7 0
2 years ago
Other questions:
  • Certain bacteria living in a human's large intestine help to produce vitamin K. The bacteria get nutrients from the human. This
    6·1 answer
  • Which particle is used to determine the atomic number of an element? A) Electron B) Neutron C) Proton D) Soutron
    10·2 answers
  • Which term describes a group of cells that are similar and work together?
    10·2 answers
  • The human genome project is dedicated to the sequencing of the human genetic code. Some people are opposed to sequencing the gen
    15·2 answers
  • The ___________ is an important element of the drug experience because it affects how much of a drug reaches its site of action
    14·1 answer
  • Some students want to test different soils to find out which ones absorb heat the fastest. For the first test, they put 500 gram
    10·1 answer
  • Which sentence describes decomposing? Please help I need this ASAP
    12·1 answer
  • En los alérgicos, a partir del segundo contacto con el alérgeno cuando se produce la reacción alérgica. ¿Cómo podrías explicarlo
    8·1 answer
  • The diagram shows the embryo development of four vertebrates and suggests all of the following EXCEPT
    9·2 answers
  • Explain why we have different seasons.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!