Answer:
Sympathetic division is responsible for the nervousness, pounding in the chest and the butterfly movement in the stomach while parasympathetic division overest a and digest the nervousness.
Explanation:
The nervousness experienced when someone is about to speak in front of a class is caused by the sympathetic system which have divergent effects as many different effector organs are activated together for that same purpose. I.e More oxygen are inhaled and delivered to skeletal muscle. The respiratory, cardiovascular, and musculoskeletal systems are all activated at the same time causing an unstable reaction to the central nervous system...
On the other hand, the parasymthetic division causes the central nervous system to rest and digest at a very slow rate..
At a point in time the central nervous system triggered an Homeostasis action which posses a balance between the two divisions.I.e symthetic and parasymthetic and then brings about a balance to the body reaction at that same point.
Answer:D
Explanation:
Photosynthesis main energy source is solar energy while cellular respiration uses chemical energy
Answer:
The correct answer is - option D. a pen.
Explanation:
A triple beam balance is an instrument which is a type of lever used to measure the mass of an unknown mass object very precisely. This instrument shows a very small error of ±0.05 grams.
It has a measurement tray on one side of the instrument and a fulcrum on the other side. On the measurement tray, an object with an unknown mass is placed and a set of sliding weights on the fulcrum. The sliding weights called riders that slide on beams to balance the object. The maximum weight a triple beam balance can measure is 610 grams ( 10+500+100).
Thus, the correct answer among these options is - option D.a pen.
Answer:
Heterozygous for the gene
Explanation:
Alleles are the possible alternative forms of a gene. An organism having two identical alleles of a gene is said to be homozygous for that gene. On the other hand, an organism having two dissimilar alleles for a gene is heterozygous for that gene.
For example, let's suppose that I^A and I^B are the two alleles for ABO blood type in humans. Here, an individual with one copy of I^A and one copy of I^B would be heterozygous for ABO blood type. On the other hand, genotypes I^AI^A and I^BI^B are homozygous for the ABO blood type gene.
Answer: A physical property is when something can be observed or measured without being changed. A chemical property is when a substance undergoes a specific chemical change. Examples of physical property are color or density. Examples of chemical properties are flammability or heat of combustion.
I hope that this helps you !
