Answer:
<u>Allopatric speciation</u> is the gradual emergence of two or more species as a result of the geographic separation of two or more groups of animals of the same species.
Explanation:
Speciation is the gradual process by which populations evolve in different species. It is understood by allopatric speciation, that gradual speciation that occurs due to geographical isolation between biological populations of the same species. During this speciation, a population is divided by some geographical barrier, when populations are physically isolated due to geographical barriers (rivers, mountains, among others), the genetic flow between them is interrupted and over time different races will evolve that will become in different species.
The options are missing in this question; here are the options:
According to E. Mavis Hetherington's research, Barney would most likely be categorized as a(n)
A) defeated
B) competent loner
C) enhancer
D) good-enough
The answer to this question is A) defeated
Explanation:
E. Mavis Hetherington is an important Canadian psychologist mainly known for studying divorce and the effects of it. About this, the psychologist proposed divorce is a complex process and has a great impact on those involved. In the case of the spouses, E. Mavis Hetherington proposes four main styles spouses might acquire after divorces such as competent loner, defeated, enhancer, etc.
In the category of defeated this psychologist includes those that do not cope with life after divorce, instead, they experience depression, loneliness, regrets, and other negative feelings, which stop them from thinking positively about the future or adapting to their situation. This category describes Barney because after divorce he feels regretful and depressed; also, he has great difficulty to cope with life or adapt to the situation.
Is about 3 hours to my understanding
I believe the answer is C. because producers aren't needed much in the ocean <span />
Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate.