Which is a way that biotechnology has not society

a: bacteria is used to grow vaccines in large quantities

b: drugs can be devolped without the use of animal research

c: new, stronger bacteria have evolved that are resistant to antibiotics

d: diabetics have a steady supply of inexpensive insulin

the force on the thing and the distance the force moves the thing

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

answerscientific theory;

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.