nickymarie
nickymarie nickymarie
  • 23-10-2020
  • Biology
contestada

describe the two types of external growth factors

Respuesta :

ani823
ani823 ani823
  • 23-10-2020

Answer:

Chemical and physical signals

Explanation:

Growth factors - proteins that stimulate cell division

(Most mammal cells form a single layer in a petri dish and stop dividing when they touch other cells.)

Answer Link

Otras preguntas

Why can't you change the subscripts in a formula in order to balance a chemical equation?
How can you tell 7/10 is greater than 1/2
What is the total energy of a 175,000kg shuttle orbiting the Earth at 600km above Earth's surface?
What is a protein? Describe the monomers and polymers of protein? What are the functions of proteins? What atoms make up proteins?
Describe how trade contributed to United States territorial growth.
How can you tell 7/10 is greater than 1/2
What happened during the holocaust?
Explain how the types of mountain landforms are related to one another.
A speedy river barge bound for New Orleans, Louisiana leaves Baton Rouge at 9:00 a.m. and travels at a speed of 10 miles per hour. A rail transport freight also
Nathan correctly answered 17 of the 20 questions on the test. What percent of the question did Nathan answer correctly?