It should be natural selection since there is no external influence implied. (like environment or genetic mutations.)
Answer:
a
Explanation:
According to the taxonomical hierarchy, the kingdom is the highest category in biological classification. It is a group of closely related organisms.
Kingdom - Phylum -Class - Order -Family - Genus -Species.
This is referred to as: spontaneous recovery
Spontaneous recovery is a theory of learning and memory which involves unexpected and recurrence of a conditioned response after a period of reduced response or delay. Spontaneous recovery is associated with classical conditioning and operant conditioning. Extinction will happen quickly after a spontaneous recovery, if the conditioned and unconditioned stimulus is not connected.
Answer:
A. An ecosystem
Explanation:
All the organisms on your campus make up the <em>ecosystem</em><em> </em>
Labeo = gills
Dolphin= pisces
Tadpole = hibernation
snake= internal fertilization
Eagle = aerial mode of life
Human = mammals