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
Sauron [17]
3 years ago
7

Why was it important, in each experiment, for redi and pasteur to have a vial that was completely closed off to the environment?

*?
Biology
1 answer:
kykrilka [37]3 years ago
7 0
Redi and Pasteur were both trying to disprove the hypothesis of spontaneous generation that stated that a living organism can emerge from inorganic matter or dead flesh. Therefore, it was essential for their research to completely seal their vials and prevent contamination with living things and spores from the environment in order to prove that living things do not emerge spontaneously.
You might be interested in
Which three foods typically contain high amounts of monounsaturated fats?
Elina [12.6K]
<span>olive oil,canola oil,peanut oil,safflower oil and.<span>sesame oil.
I know that is more than 3, but you can just pick 3 examples from the list</span></span>
7 0
3 years ago
Jose and Fran MUST follow specific safety procedures when heating water with a Bunsen burner. The safety procedures include
8_murik_8 [283]
The following are some common procedures that we should take action of when using a bunsen burner to ensure our safety:

1. Wear safety goggles. Tie up long hair and school ties if needed. This can lower the risk of catching on fire. Put a heatproof mat underneath the Bunsen burner, put a tripod and the beaker of water for heating on top of the burner.

2. Close the air hole. Before we start up the burner, the air hole must be closed or green flame (striking back) may occur 

3. light up a match or a lighter. Put it over the chimney. 

4. Turn on the gas tap, you should be able to see a yellow flame now. Remove the lighter or match and open the air hole. We should have a blue flame by now. 

5. the water should start to heat up. Never touch the hot beaker with bare hands.

6. When the water is heated up to the temperature they wanted to, it's time to close the air hole and turn off the gas tap. 

7. If they need to move the hot beaker, use heat protection gloves 

These should be the correct procedures that they should follow in order to heat the water safely. 

Hope it helps!



4 0
3 years ago
Sometimes, pregnant women are very emotional. This is believed to be caused by extra estrogen and progesterone that are released
Strike441 [17]

Activational effect is the correct answer.

Activational effect is an impermanent hormonal effect that leads to a change in physiological activity or behavior in both humans and adult animals. For instance, when testosterone levels rise in male songbirds they become more aggressive and tend to engage in courtship behavior. Also, a pregnant woman may get more emotional than usual due to an extra level of progesterone and estrogen during pregnancy.  

3 0
3 years ago
Question 5 of 10
8090 [49]

the answer is A because A always goes with T

8 0
3 years ago
Are crocodiles adorable? Show me pictures for proof
Lubov Fominskaja [6]

Answer: They are as adorable as any animal could be.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A plant chloroplast is a plastid. <br><br> True or False
    13·1 answer
  • Which is required for sexual reproduction?
    11·2 answers
  • WILL GIVE A BRAINLEST
    14·2 answers
  • Using the graphs below , which group of moths is better adapted to survive the hunting cycle
    11·2 answers
  • How do cells in multi-cellular organisms get the resources they need to stay alive?
    5·2 answers
  • Carl and Maria joined the cross-country team. They practiced long hours, running for miles every day. When they questioned the n
    11·2 answers
  • •In fruit flies, two wings (W) is dominant over four wings (w).
    15·1 answer
  • the drinking water in a location in florida had a foul odor and taste. investigatiors revealed that storm water runoff had carri
    6·1 answer
  • The majority of vaccines work by eliciting pathogen-specific antibodies that circulate in our bodies and protect us in the event
    9·1 answer
  • What are sex chromosomes? What is the sex chromosome combination for human males and females?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!