Answer: D
Explanation: Because new dog breeds are made when people mix two different breeds together to make another breed
Answer:
Revolution of earth around the sun
Explanation:
Answer:
The cell must replicated DNA because when the cell divides, the daughter cells must have identical copies of DNA. DNA replication occurs in the S phase during interphase of the cell cycle.
Answer:
The correct answer is "motor unit - motor neuron".
Explanation:
Motor unit and motor neuron are related terms, however they could not be used interchangeably because a motor unit is not comprised only of a motor neuron. A motor unit is made of a motor neuron, skeletal muscle fibers and neuron's axonal terminals. Therefore motor unit is a more broadly term, and is referred to the units that coordinate the contractions of single muscles.