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
Tpy6a [65]
3 years ago
10

Ned is designing an experiment to test which hand sanitizer kills the most E. coli bacteria. In order for Ned's results to be va

lid, what must he do?
Biology
2 answers:
Kay [80]3 years ago
7 0
Have a control. You have to have something to compare your experimental results or else your results could be random chance. 

kondaur [170]3 years ago
7 0
Test the hand sanitizers on bacterial colonies that are kept in the exact same environmental conditions, such as temperature and light level
You might be interested in
What would earth be like without the greenhouse effect?
schepotkina [342]
Freezing. The greenhouse effect is the way how earth is kept warm , as the heat radiation is trapped through the gasses ( gasses reflect the radiation back to earth) without the green house effect, the earth I assume would be all "iced up"and " bare and bold" up, and life (as we know it ) would not survive ( some others forms of life may take place but we never know...)

Personal opinion , free to accept other ideas .
4 0
3 years ago
What is the difference between inorganic and organic
sergey [27]

That one of then is not organic and the other is organic and remember -in stands for not

6 0
3 years ago
Explain in your own words, why an avocado fruit has a higher biotic potential than a tangerine fruit.
ale4655 [162]

Explanation:

Each avocado fruit contains one large seed. Each tangerine fruit contains a dozen seeds or more. Because the tan- gerine tree produces more seeds per fruit, it has a higher biotic potential than the avocado tree.

7 0
3 years ago
Label this bacterial cell ASAP
irina1246 [14]
A= cell wall
B= cytoplasm
C= Plasmid
7 0
3 years ago
The waste from plants and animals is collectively called _______
Ray Of Light [21]

Answer:

compost

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • The midpiece of the mature sperm contains mitochondria that provide metabolic energy for the trip to the egg. fructose (simple s
    12·1 answer
  • What do plant cells have that animal cells dont
    6·2 answers
  • Why are cortisol analogues such as prednisone used for treating asthma?
    15·1 answer
  • Some species form social groups only with members of the same gender. For example, elephants form groups with only females and t
    12·1 answer
  • In cellular respiration, the energy for most atp synthesis is supplied by
    13·1 answer
  • How does photosynthesis work step by step
    15·2 answers
  • Is your name darel ibyibewbyqybyubycbywb
    12·1 answer
  • A gene carries the ________ for a trait.
    11·1 answer
  • List all the things that you can think of that go into the child.
    6·1 answer
  • 1. Sensation is to as perception is to a. vision, olfaction b. conscious, unconscious c. awareness, interpretation d. taste, vis
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!