3 - Exposure to radiation
Radiation ionises cells and can cause mutations in genes.
The rest of the options have no affect on genetics at all, merely a temporary affect on the physical aspects of the body, such as heart rate etc.
Answer:
<u><em>All of the options are correct. </em></u>
Explanation:
In ecology, competition can be described as a fight between two organisms for limited resources like water, food shelter etc. Competition might occur in organisms from different species or it might occur in organisms of the same population.
Let's consider an area where the population of females is lesser as compared to males. In this area, the males will compete for mating with the females.
If there is limited space, birds of an area will compete for nesting sites.
In an area where the population is more than the carrying capacity, the organisms will compete for food.
B.) Water because snow, hail, and sleet are all water when melted.
Answer:
Cell membrane
Explanation:
Cell membrane is an important part in cell which performs various vital functions. It is not only a simple boundary that surrounds the protoplast rather it is a semi permeable membrane structurally made of proteins and lipid bilayer and regulates the transport of different materials across it.
It regulates the following transports -
- Disposal of wastes
- Export and import of nutrients
- Export and import of various ions
- Export and import of gases
