Petri dishes should always be stored inverted.
In biology, petri dishes are frequently used to produce microorganisms like bacteria, yeast, and mold. The organisms that grow on solid or semisolid surfaces are best suited for it. To reduce the chance of contamination from airborne spore particles landing on them and to avoid the buildup of water condensation that could disrupt or impair a culture, they are often covered and stored inverted.
Aside from that, incubating the media in the normal position could result in the media drying out, which would interfere with the ideal conditions for microbial growth and increase microbial count mistakes. Since the labels are put underneath the plates rather than on the lids, placing plates upside down also makes them easier to handle and recognize.
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Hello,
What is the most common blood type?: The most common blood type would be O Positive (O+). About 39 percent of the population has this blood type.
What is the least common blood type?: The least common blood type would be AB Negative (AB-). About 1 percent of the population has this blood type.
Thanks,
-Detector
Answer:
Plastic
Paper
Paper
Those are the answers on edge. I just did them.
Answer:
ecology or evoloution
Explanation:
my main answer would be ecology but im not sure
6:
•picture on the left is a sperm cell, thing labelled is the TAIL
•picture on the right is a bacteria cell, thing labelled is PILI
7:
cilia are short hairs that are on cells where as flagella are very long hairs
therefore the structures below are FLAGELLA
