These preparations are called Vaccines. A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing micro-organism and is often made from weakened or killed forms of the microbe, its toxins or one of its surface proteins.
This could be that the patients ovaries are unable to produce eggs anymore or have a diminished ovarian reserve and produce few eggs...
B. One
because an independent variable is something you change. So in a scientific experiment you only change one thing. If you happen to change more than one thing then the test becomes unfair therefore you should repeat and make sure that only one thing is changed this time.
Answer:
Cell wall, Vacule, Plastids
Explanation:
Answer: The image formed by a plane mirror can only be the same size as that of the object.
Explanation :
A plane mirror consists of a highly reflecting surface. This surface reflects a large portion of light. One of the surfaces is polished with red lead oxide.
The image formed by the plane mirror is of the same size as that of the object. The distance between the object and the mirror is equal to the distance between the image and the mirror.
Out of given options, the correct one is (d) " The image can only be the same size as the object ".
