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
hichkok12 [17]
3 years ago
10

How was the appearance of the disease-causing bacteria (S strain) different from the harmless bacteria (R Strain)?

Biology
1 answer:
Vlad [161]3 years ago
3 0
The disease-causing bacteria (S strain) grew into smooth colonies on culture plates, whereas the harmless bacteria (R strain) produced colonies with rough edges. The difference in appearance made the two strains easy to tell apart. ... When he injected mice with harmless bacteria, the mice stayed healthy.
You might be interested in
A scientist uses electricity to break down water into hydrogen gas and oxygen gas. Which statement best explains what happens? A
Margaret [11]

Answer:

A. A chemical change occurs.

Explanation:

7 0
2 years ago
Chemical hand warmers come wrapped in plastic.
shtirl [24]

Answer:

B. A chemical reaction transforms thermal energy into chemical energy

Explanation:

I hope it helps <3

4 0
3 years ago
What are the diference between aerobic and anaerobic cellular respiration?
stich3 [128]
Aerobic respiration uses oxygen to produce ATP. Anaerobic respiration uses inorganic molecules to produce ATP. I hope that answered your question, my friend. :)
5 0
3 years ago
Read 2 more answers
Not all members of a species are the same. Every species exhibit
FrozenT [24]
Every species exhibits variations based on various genes being activated at various times. An example with humans can be eye color or hair color. What species means is that all members of a species can procreate with healthy, capable of procreating progeny, but anything else is just a variation.
3 0
2 years ago
International Nuclear Event ScaleInternational
bezimeni [28]
What? I don’t understand what you are asking.....
5 0
3 years ago
Other questions:
  • The F2 generation phenotypes resulting from the monohybrid cross of purebreds display a ratio of _____.
    13·2 answers
  • Assuming that transcription and translation both proceed from left to right, which is the correct orientation of the DNA templat
    7·1 answer
  • 1) Which of the following best describes what causes plasma cells to form during a humoral immune response?
    11·1 answer
  • How are human activities contributing to the rise in Earth’s temperatures?? Someone answers fast please!
    5·1 answer
  • Question 10 of 10
    8·2 answers
  • What happens to the molecules of a substance when heat is added to it ?
    11·1 answer
  • The lens within an eye focuses light onto the
    8·1 answer
  • Describe what you believe a chemical rxn is ? Use the lab to describe it in 3 or more sentences.
    15·1 answer
  • About how long did it take to grow the last 20 cells?
    14·1 answer
  • Which phrase describes convection?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!