Which of these statements is true?
an antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes.
an antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of other viruses.
an antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of eukaryotic cells.
an antibiotic is any substance produced by a prokaryote that prevents growth of the same prokaryote.

An antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes.

Explanation:

Antibiotics can be defined as natural compounds - when produced by fungi or bacteria - or synthetic compounds capable of interfering with bacterial growth or causing the death of these beings. In either case, antibiotics can be defined as any substance produced by an organism that is antagonistic to prokaryote growth.  When they cause bacteria to die, they are called bactericides, but when they only inhibit their growth, they are called bacteriostats.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle