The first one is a: mitosis produces two genetically identical daughter cells.
The second one is b: prophase
The third one is a: interphase
The fourth one is c: metaphase.
Mitosis is the process of body (somatic) cells splitting to form new body cells. It contains 4 phases: interphase, when the cell is between splits and the chromatin is bundled up. prophase, when the chromatin doubles and condenses to chromasomes. metaphase, when the chromasomes line up along the cell equator, anaphase, where the double chromasomes split into separate groups, telophase, when the groups form new nuclear envelopes and the cells split.
Mutualism can be defined as a type of symbiotic relationship.
Symbiosis can be defined as the type of ecological interplay in between two species localized in the same habitat in which at least one of the species gets benefited in the form of food, shelter or protection due to the interaction.
Mutualism is a type of positive symbiosis in which both the species involved in the ecological interplay benefits due to the interaction in between them.
In the given question, some micro-organisms survive in the digestive tract of the cattle.
These micro-organisms produce the enzyme, cellulase, which helps in digesting cellulose present in the food consumed by the cattle.
The cattle is incapable of producing this cellulase enzyme by itself and is dependent on the micro-organisms for its synthesis.
Hence, the the micro-organisms help the cattle in obtaining nutrition and energy by the digestion of cellulose.
On the other hand, the micro-organisms get shelter, nutrition and protection in the gut of the cattle.
<h2>The following scenarios state whether the mutation is likely to be passed on to the offspring of the organism or not:
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a. A single bacteria cell contains a positive mutation in its DNA - The mutation is likely to pass as it is a unicellular organism with the cell itself containing the positive mutation.
b. A skin cell on a cat contains a positive mutation in its DNA - The mutation is not likely to pass as it is the skin cell.
C. A sperm cell in a whale contains a positive mutation in its DNA - The mutation is likely to pass as it is in the sperm.
If you are at a picnic and the sky is filled with cumulus clouds, there is a low or no chance at all that you will get wet. Cumulus clouds are associated with fair weather, and although there may be rain in some cases, there usually isn't.
