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
Arisa [49]
3 years ago
12

Pasteur used tipped and untipped sterilized S-shaped flaks of broth in an attempt to​

Biology
1 answer:
Natalka [10]3 years ago
5 0

Answer:

Show that life can only come from life (rather than spontaneous generation)

Explanation:

Pasteur boiled a broth in a flask with an S-shaped neck. Thebend in the neck prevented particles from the air reaching the broth, but still allowed air to get in.  No bacteria grew in the flask.  

When the flask neck was broken so that particles could get inside, the broth became cloudy, showing that microorganisms were only able to grow from other living things from the outside, and not spontaneously from nothing

You might be interested in
When studying animal behavior, the distribution of organisms within a choice chamber can be studied to identify animal preferenc
Komok [63]

Answer:

c

Explanation:

Random distribution of the Isopods should be 50/50 in A and B.

Chi-square = \frac{(O - E)^2}{E} where O = observed frequency and E = expected frequency

Chamber         O                    E             Chi-square

  A                   18                   10             \frac{(18 - 10)^2}{10} = 6.4

  B                    2                    10             \frac{(2 - 10)^2}{10} = 6.4

<em>Total Chi-square </em>= 6.4 + 6.4 = 12.8

<em>Degree of freedom</em> = 2 - 1 = 1

<em>Tabulated Chi-square</em> (α = 0.05) = 3.8415

The calculated Chi-square exceeds the critical value, hence, it is significant and not due to random.

<em>The correct option is </em><em>c</em><em>.</em>

4 0
3 years ago
Help me in my hw ,An air bubble in a jar of water shines brightly.Why?Correct answer will get brainlest and thx but plz don't sp
Amanda [17]

Answer:

As the bubble is a spherical entity, the probability of total internal reflection from the watery films is high due to its curvature. As a result, most of the light rays get reflected and therefore the air bubble shines brightly with some sparkling in water

5 0
3 years ago
Read 2 more answers
Only green organisms have chloroplasts, so do green frogs and toads have chloroplasts??
Orlov [11]

Answer:

Chlorophyll is a cell that comes from plants not animals.

Explanation:

Chlorophyll is the part of chloroplast and is the light absorbing pigments which provide green color to the plants, but chloroplast traps the solar energy, which is the site of photosynthesis and other chemical reactions and works as the ‘powerhouse of the cell’ like mitochondria.

8 0
3 years ago
Which of these changes take place during labor?
Volgvan

Answer:

The answer is rhythmic contraction of the uterus wall.

Explanation:

this is because when muscle is overly used, it brings about contraction

5 0
2 years ago
What is the correct term for measurement of geographic distribution of species
katrin2010 [14]

i'm fairly sure the answer is "species distribution."

5 0
3 years ago
Read 2 more answers
Other questions:
  • PLS HELP! WILL GIVE BRAINLIST!
    12·1 answer
  • Which method is not acceptable for cooling hot foods for refrigeration?
    11·2 answers
  • What is found in the nucleus of an atom? Question 1 options: electrons neutrons and protons protons and electrons neutrons and e
    13·2 answers
  • How do winds blow around a hurricane?
    15·2 answers
  • Scientists look at evidence to determine possible evolutionary relationships and mechanisms. Which of the following provides str
    12·1 answer
  • What would be mass/weight on an alien on earth <br><br> I will need the equation and pounds
    7·2 answers
  • Why might a person who has skin cancer later<br> develop a tumour on her lungs?
    12·2 answers
  • Modeling therapy involves mimicking productive ways to solve problems after observing another model a specific behavior. Please
    15·2 answers
  • Which of the following is an interaction in which one organism benefits and the other is unaffected?
    13·2 answers
  • Which of these are recommended for preventing some std/sti’s
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!