Answer AND Explanation:
<u>FACTORS THAT CAUSE GENETIC VARIATIONS</u>
- Crossing over. At the chiasmata during prophase I of meiosis, breakage may occur and exchange of genetic information may take place. New gene combinations which result in variations.
- Independent assortment. The arrangement of homologous chromosomes at the equator of the spindle during metaphase of the first meiotic division is random. These homologous chromosomes segregate into different daughter cells which contain different genetic combinations which brings about variation
- Fertilisation permits parental genes to be brought together in different combinations. This is the cause of variations in members of the same family.
- Mutation is the spontaneous change in the genetic makeup of an organism. These changes may be inherited by the offspring therefore beginning variation.
For Plato it think its c-Flowers of corn are pollinated by the wind. They are small and lightweight to allow easy pollination by the wind.<span> They do not need to attract animals or insects and are therefore colorless and odorless.</span>
Examples of stimuli are the weather, sound, the cold, light, taste, color, and gravity.
- When you hear a loud noise you get scared and scream
- When it is hot outside you sweat
If trash were to somehow appear in the ocean, water would be polluted and animals would be poisoned and die.
Answer:
Dinoflagellate is suspected to be present from the subgroup of protista as they are found in the fresh water habitat.
Explanation:
The orange colouration probably indicates that the cell has over-accumulated β-carotene.
