30. Which of the following is an
application of knowledge gained
from science?
A. Commercial production of
Penicillin
B. Digestion of food in the
stomach
C. Photosynthesis in plants
D. Production of urine by the
kidneys

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

What is the difference between an igneous, sedimentary and metamorphic rock

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.