Answer:
The correct option is D) determines normal activity of the urinary tract.
Explanation:
The peripheral nervous system controls involuntary functions and acts. The parasympathetic tone is known as a constant activity that maintains the parasympathetic nervous system, this allows that at any given time, the activity of this system can increase or decrease, that is, the value of the tone has implications in the increase or decrease in the activities of the stimulated organ, in its contraction or relaxation. Parasympathetic stimulation raises the tone of the detrusor muscle (causes it to contract) of the urinary bladder and relaxes the trigone and the urethral sphincters(which muscles help to keep the urethra closed, that is, help the urine staying in the bladder), favoring micturition.
Answer:
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
Explanation:
Answer:
Red blood cells transport oxygen around the body. They are specialised to carry oxygen because they: contain large quantities of a protein called haemoglobin , which can bind oxygen. don't have a nucleus, so there is more room for haemoglobin.
Explanation:
Answer:
Human activities can affect climate change because of just how much waste we produce. One huge example is our burning problem, which slowly strips away at the ozone layer that protects animals from heat and melting snow. Because of the ozone layer, the arctic has been protected for many years but now it's slowly disappearing, melting ice and killing animals who have not learned to survive in such hot weather. Another example is when humans cut down too many trees to sustain the environment; it often causes a massive lack in natural oxygen and unroots many homes of small critters and worms. In conclusion, humans can heavily affect climate change because of our ignorance and how we refuse to learn for the future.
Explanation:
Answer AND Explanation:
Mutation is a spontaneous change in the DNA. Gene mutation refers to changes in the nucleotide sequence in a particular gene while chromosomal mutation are changes in the gross structure of chromosomes.
During transcription or translation, RNAs are formed which are not heritable. Many copies of RNA are produced and a single bad one is not a big problem to the organism. Mismatch repair enzymes can fix any errors that were missed by the polymerases during transcription.