Answer: Answer is c 8 500
Explanation: Find the growth, in this case it would be 4-12. So you want to find the difference between them by subtracting the two values. 12-4=8
Answer:
convex lens
Explanation:
because when parallel rays of light pass through a lens are brought together through a lens
Answer:
Skin acts a defensive and protective layer. It protects the internal body from pathogens, which are disease causing bacteria. The skin can fend off bacteria, particles, foreign bodies, etc.
Explanation:
Answer:
Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection.
Explanation: "it is what it is".