Answer:
this one
Explanation:
the amount of time taken for a longitudinal wave to produce one cycle the number of cycles per second perceived by the human ear.
C. living things respond to stimuli in the environment
A motor converts electrical energy into mechanical energy. Think of a car, it burns fuel (electrical energy) and turns it into tire spinning (mechanical energy)
Answer:
Fraternal twins are “dizygotic,” meaning that they developed from two different eggs fertilized by two different sperm cells, while identical twins are “monozygotic” i.e., they developed from a single fertilized egg that split.
Explanation:
The phospholipid bilayer is a universal component of all cell membranes. Each phospholipid molecule has a hydrophobic(water repelling) and a hydrophilic( attracted to water) end. This allows the phospholipids to arrange themselves in a way that makes a cell membrane not able to dissolve in water. The bilayer is also semi-permeable which allows only certain molecules to enter the cell.
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