sidney w. fox produced which suggest a possible route from chemical to cellular life.
a) ribozymes

b) proteinoid spheres

c) prokaryotes

d) none of the above

Proteinoid spheres

Explanation: Sidney W. Fox produced proteinoid spheres by heating the amino acids produced during the Miller-Urey Experiment.

Proteinoids can be defined as the substances that resembled protein. This substance was produced in the conditions that was created artificially that was very similar to the conditions that was formed during the time when life evolved on earth.

This did not proved that protein can be produced by heating of amino acids but further research can answer the process of various anabolic reactions.

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

answer; i believe the correct answer is (a)0