I think it is B. <span>Salt left behind after water evaporated because in water, there is salt. When the sun appears, the water evaporates a little, causing the salt to expose!</span>
YOUR.answer is..(respiration,digestion,reproduction,and excretion )
Answer:
It is an Observation, because using your senses is used when you make observations
1/8 teaspoon , 1/4 teaspoon, 1/2 teaspoon , 1 teaspoon , 1 tablespoon
An example of a population in which evolution could take place in a relatively short period of time could be pathogenic bacteria exposed to antibiotics.
Answer: Option A
<u>Explanation:</u>
Evolution if takes place within a short period of time say the next generation that is called as micro evolution. This is caused when a specific organism exposed in a different environment at once modifies its genes to suit the new environment. This phenomenon can be very well seen in the pathogenic bacteria which are exposed to antibiotics.
When an antibiotic is prescribed to bacteria initially it nullifies its effect by destroying it. When continuously exposed to a certain antibiotic some bacteria dies but there are few which becomes resistant to it and survives. This on the other hand multiplies producing a generation that can’t be touched by the antibiotic.
