Answer: A) Balding
Explanation:
Balding is the most common pshysical change in middle-aged men.
Generally speaking, men between 35 and 40 years old develop a state of baldness that although it is not aggravated, it is notorious. Some men even begin to lose their hair at an earlier age, approximately 25 years old and older, although in those cases it is very likely that the cause is a genetic tendency.
Normally, after a certain age range (stated above) the hair fiber begins to lose strength and said follicles simply do not allow hair growth so fast as they did when the individual was younger.
It's a pyramid of numbers, I believe.
Answer:
Aquatic ecosystems include oceans, lakes, rivers, streams, estuaries, and wetlands. Within these aquatic ecosystems are living things that depend on the water for survival, such as fish, plants, and microorganisms. These ecosystems are very fragile and can be easily disturbed by pollution.
Explanation:
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.