<h2>Answer:</h2>
The correct statements are 2, 3 and 5 which are:
2. They fall from the clouds as ice crystals.
3. They form around particles in the atmosphere.
5. They form when water vapor is converted directly to ice crystals.
<h3>Explanation:</h3>
- Snow flake is the name of single ice crystal which has distinct shape of six sides.
- It is formed when a cold water droplet freezes on the dust or pollen particle in air.
- This forms an ice crystal. Water vapor forms the primary crystal.
- The beautiful and unique shape forms according to temperature.
A) <u>Mutation</u> is the original source of variations for plants and other organisms which develops differences among their respective species
Explanation:
Genetic variation leads to the natural differences between each individual and among individuals of a species. The main cause for this variation is due to alleles that cause variations in the composition of genes or the DNA sequences.
A mutation is a genetic variation which leads to the creation of a new allele in a species population. Each variation in the DNA sequence leads to an allele formation and each allele leads to a difference in character or trait between individuals since they are the alternate version of the original genes.
Although genetic variations could be brought about by crossing over, random fertilization, or independent assortment; mutation is the original source because it provides the basic raw material for all the evolutionary changes.
Explanation:
If they´re mutated it means that there was a modification in they´re genes, which makes them resistant to any actions that us humans took to prevent the previous generation of influenza viruses.
Answer:
Since there was a change in their genetic code to resist our treatments/ preventions, they pose a higher risk to us. Why? Because our treatments/preventions will be useless and the virus might cause some damage until our solutions to prevent/cure it are updated, that is, if we don´t have to re-invent any.
Tip:
You can think of the influenza virus as a software. The mutation can be an update that gets rid of a bug, which would be our preventions (vaccines).
Hope it helped,
BioTeacher101
2 alleles which are both equally expressed is known as co-dominance, this occurs in the blood when someone has AB blood for example, the A and B alleles have co-dominance.
Answer 160 Salmonella
You would have 160 Salmonella’s