Answer:objects move in a circular path
Explanation:
when we tie thread at the top of scale and then move it in circle ,in this case the scale is not going out of the circle ,this means that the scale provide centripetal force.
Answer:
active immunity
Explanation:
Active immunity is the form of acquired immunity in which the body produces its own antibodies against infections. When infectected by a bacterial infection that had happened before, one will not become seriously ill. This is because memory cells are able to recognise the antigens and stimulate the immune system to produce antibodies against the pathogens.
Since we wish to test the null hypothesis that gender and personal goal are independent. Under the said null hypothesis, the expected number of boys that would select "be good at sports" would be the same more or less with the girls that would select "be good at sports". The difference in their means would be set to zero for this null hypothesis.
are identical in mitosis but differ in meiosis is the correct answer since in meiosis you get 4 cells with half the genetic material