Pretty sure it would be A it makes the most sense
For an atom to become a positively charged ion it must lose negatively charged electrons.
Pond ecosystem considered as an open ecosystem because pond is always open . There is an interaction of pond with atmosphere , due to which it ecosystem becomes open.
Your kidneys will filter the blood so as to remove excess water, urea, cell waste, with the additional removal of salts! Hope this helps!
Functional magnetic resonance imaging (fMRI) is the neuromarketing technique that looks for active areas in the brain by measuring the amount of oxygenated blood flowing through the body.
Functional magnetic resonance imaging (fMRI) is a noninvasive technique for measuring the activities of the brain. This technique is used to observe the brain’s functional anatomy as it reveals the parts of the brain that are involved in a certain mental process. fMRI functions by using magnetic resonance imaging to measure the small changes in blood oxygenation and flow that take place as a result of activities of nerve cells in the active areas of the brain.
