Answer:
The peripheral nervous system (PNS) is one of the two components of the nervous system, the other part is the central nervous system (CNS). The PNS consists of the nerves and ganglia outside the brain and spinal cord.[1] The main function of the PNS is to connect the CNS to the limbs and organs, essentially serving as a relay between the brain and spinal cord and the rest of the body.[2] Unlike the CNS, the PNS is not protected by the vertebral column and skull, or by the blood–brain barrier, which leaves it exposed to toxins and mechanical injuries. The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system. In the somatic nervous system, the cranial nerves are part of the PNS with the exception of the optic nerve(cranial nerve II), along with the retina. The second cranial nerve is not a true peripheral nerve but a tract of the diencephalon.[3]Cranial nerve ganglia originated in the CNS. However, the remaining ten cranial nerve axons extend beyond the brain and are therefore considered part of the PNS.[4] The autonomic nervous system is an involuntary control of smooth muscle and glands. The connection between CNS and organs allows the system to be in two different functional states: sympathetic and parasympathetic
Explanation:
Answer:
Increase
I cant remember the lesson number but if the number of predators increase it would make many animals that are there prey to become scarce in the area the predators are in wich would make many predators starve so in order to avoid they would have to move out across more land to find more food
Answer:
very few cells are able to reproduce
Explanation:
Evolution's patterns manifest as nested similarities. nesting occurs between molecular sequences of evolutionary related organisms and between the different taxa arranged in a phylogenetic tree. True
Phylogenetic tree is a branching diagram that shows the evolutionary relationships between various species.
Nesting behavior is an urge in the pregnant animal to prepare a home for the upcoming generation which occurs due to increase in the amount of estradiol to protect them from predators and environment.
Nesting behavior is also taken consideration to understand the phylogenetic similarities between various species.
To learn more about Phylogenetic tree here
brainly.com/question/13577065
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