"During embryonic development red blood cells begin to develop in patches called blood islands. The blood cells secrete growth factors that diffuse only to nearby cells, signaling differentiation into endothelial cells. The endothelial cells eventually form the linings of the blood vessels." The growth factor described in the passage is involved in what type of signaling?a. Autocrine
b. Paracrine
c. Endocrine
d. Juxtacrine
Answers: 2
Biology, 21.06.2019 15:00, charlettethomap7e9st
Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z
Answers: 2
Biology, 21.06.2019 21:10, RonGeffrard9597
Complete the possible outcomes for each generation in the pedigree chartaa aa aa
Answers: 1
Biology, 22.06.2019 17:20, elawnnalewis3568
What is an example of a scientific question that galileo could not have answered with out this new tool?
Answers: 2
"During embryonic development red blood cells begin to develop in patches called blood islands. The...
Mathematics, 09.09.2020 08:01
Mathematics, 09.09.2020 08:01