<span>The limbic system is most likely responsible for emotional responses in REM sleep. Within this system are the amygdala, hipocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus. Respectively, these are responsible for such reactions as: emotional response, the memory center, learning, changes in emotional reactivity, physical movements, and smells, sights, reactions to pleasant memories, reactions to emotional pain, and regulation of behavior.</span>
Answer:
A. They must compete for essential resources.
Explanation:
From west to east over the United States.
Answer:
3. haploid; diploid
Explanation:
Sperm is male gamete or often called male reproductive cell. During the process of spermatogenesis, reductional division (meiosis) occurs in the spermatocytes and spermatids are formed which further mature to sperms. Thus as a result of meiosis, their chromosome number is reduced to half and thus they become haploid cells. During oogensis, eggs are also formed as a result of meiosis which reduces the chromosome number and so eggs are also haploid.
When during fertilization, these two haploid nucleus of these cells fuse together, they form a diploid zygote.