<span>Fermentation
tubes, also known as, Durham tubes; are used
in microbiology to distinguish the production of the gas by microorganisms.
They are smaller test tubes implanted
upside down in alternative test tube. This small tube is primarily occupied with the solution in which the
microorganism is to be developed.</span>
Answer: According to sources, the most probable answer to this query is that evolution happens because when life came it sought for survival. Now, this is through mutation which causes random DNA sequences leading to genotypic and phenotypic changes. Natural selection as relation to adapting to the selection forces of the environment. And when these factors is added by the niche and other large case scenario to cause major anatomical changes, speciation comes through. And that, the process of evolution. And how it is a mechanism and an intermediate interaction with the environment.
Explanation:
Answer:
The correct option is 21
Explanation:
First of all, it should be noted that the full moon is usually observed in the middle of the lunar month, which is usually 29 or 30 days, hence the full moon can be observed either on the 13th but most likely on the 14th and/or the 15th of the lunar month.
At the early days of the month, the new moon begins to form a crescent which appears and continues to get fuller (called waxing crescent) as the day goes by until half of the moon is noticed (usually after about seven days) on one side, this is known as the first quarter.
After half of the moon is noticed on one side, the moon continues to get fuller (called gibbous moon) until a full moon is noticed on the 14th/15th day. <u>This full moon then starts waning or becoming smaller until the other half of the moon becomes visible while the initially seen half becomes invisible/clouded (this is called </u><u>third quarter</u><u>)</u>. This happens after another 7 days or on the 21st day. This half moon continues to get smaller (forming a waning crescent) until no moon is seen at the end of the month (around the 28 or 29th day) which is referred to the new moon.
Hence, we can see from the above that from the third quarter to a new full moon will go through the steps below
third quarter ⇒ new moon ⇒ first quarter ⇒ full moon
If each step takes about 7 days and there are 3 steps, the approximate number of days she has to wait before the full moon is 21 days.
Answer:
An atom is the smallest component of an element that still has the properties of that element.
Atoms are made of three particles. protons, neutrons, and electrons.
Explanation:
There are 4 types of RNA, each encoded by its own type of gene. ... mRNA - Messenger RNA: Encodes amino acid sequence of a polypeptide. tRNA - Transfer RNA: Brings amino acids to ribosomes during translation. rRNA - Ribosomal RNA: With ribosomal proteins, makes up the ribosomes, the organelles that translate the mRNA.
