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Likurg_2 [28]
2 years ago
10

What kind of tree was the first Christmas tree? Merry Christmas Everyone!!!!!!!!

Biology
2 answers:
jasenka [17]2 years ago
5 0

fir tree and Merry Christmas <3

elena-14-01-66 [18.8K]2 years ago
4 0

Answer:

Christmas Trees From Germany

Explanation:

Germany is credited with starting the Christmas tree tradition as we now know it in the 16th century when devout Christians brought decorated trees into their homes. Some built Christmas pyramids of wood and decorated them with evergreens and candles if wood was scarce.

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One cycle of the moon takes about one __________.
shepuryov [24]

Answer:

one whole day

Explanation:

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3 years ago
The case study describes a cluster of food poisoning incidences. If the causative agent is Salmonella spp., then give your predi
EleoNora [17]

The term "IMViC" is an acronym for each of these tests. "I" is for indole test; "M" is for methyl red test; "V" is for Voges-Proskauer test, and "C" is for citrate test. The lower case "i" is merely for "in" as the Citrate test requires coliform samples to be placed "in Citrate". Triple sugar iron test (TSI), Urease Test and Malonate Test are also included in this test.

For each of the tests, different reagents are added  to the species are inoculated and tested.

For Salmonella sp. the IMViC Test result is:

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Methyl red - Positive

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4 0
3 years ago
Explain how the vaccine makes someone immune to mumps
slava [35]
A vaccine works by stimulating the immune system to produce antibodies without actually infecting someone with that disease. They trigger the immune system to produce its own antibodies as though the body has been infected with the disease. But a vaccine will not make someone immune to a disease, it will simply help the body be able fight the infection better.
5 0
3 years ago
The lifetime of an intracellular signaling molecule must be short for the cell to be able to cause a change in the concentration
ivann1987 [24]

Answer:

Statement B is false.

Explanation:

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At the level of  polypeptide chain level PKG has single polypeptide chain whereas in PKA modulatory domains are located on different poly peptide chain. Both are activated by the nucluoside triphosphate, more precisely PKA by cAMP and PKG is by cGMP respectively, whereas PKC is activated by DAG or Ca or both depending on the isofom.

Thus, the correct answer is - option B.

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