Answer:
Contains large polytene chromosome that permit visual inspection of genomic events.
Were used to study the genetic effects of mutations.
Were used to establish the concept of chromosomal inheritance.
Explanation:
<em>Drosophila melanogaster </em>is a model organism that is used by scientists to study the genes and effect of a mutation on the genes. Drosophila is used as a model organism as it has a very short life cycle and the offspring can be produced in a short duration of time.
Because of these characteristics, Thomas Hunt Morgan wanted to study the factors of inheritance on the <em>Drosophila</em> and concluded in the form of the chromosomal theory of inheritance by the effect of mutation on genes that lead to linkage mapping.
Also, the salivary gland of fruit fly contains the polytene chromosome which allows us to look into the gene events.
Thus, the selected options are correct.
There will always be one stronger species that take over, which is what evolution has taught us.
I believe the answer would be D. <span>Only one will survive.
Have a good day!</span>
Sub and super
Pre and post
Bene and mal
I’ve annotated your question and colour coded the answer, (the dotted line represents current bird population) and blue line represents what the population will look love after natural selection
Answer:
Filtration and non-ionizing radiation.
Explanation:
Filtration is a correct method of sterilization for items susceptible to heat. (Nutritive medium for example), the pore needs to be small enough to prevent bacteria or viruses from passing through the filter.
Non-ionizing radiation, like UV light it is also used for sterilization. It is often used for sterile material not containing biological substances.
Desiccation is not used for sterilization, spores form part of many bacteria, fungi and protozoa that will be able to grow once conditions are moist enough. It will control the microbial growth but no sterilize (meaning killing all forms of microbial life)
Osmotic pressure happens to be a great process to preserve food, but not for sterilization, again, it will control most of it but will not sterilize it.
