The most likely explanation for the variation is the offspring were produced from different combination of genes. A single pair of gold fish mentioned in the question means a male and a female gold fish. The two of them mated and contributed different genes to the fertilized fish eggs, this results in production of various body shape and colouration which is known as variation.
Answer:
Option D, Gastric Juices
Explanation:
The second line of defense is a non specific defense mechanism in which no specific individual is targeted but all invaders are killed in general way. Some common mode of second line of defense are - Phagocytic cells (white blood cells), inflammatory responses, macrophage system etc. The second line of defense comes into action when the invader has surpassed the first line of defense which include either physical barrier like skin, mucous membrane, hair, cilia etc. or chemical barriers like gastric juices, saliva, Hyaluronic acid etc.
Hence, gastric juice does not belong to second line of defense.
Thus, option D is correct.
Similar in exponential decay 10 grams of a radioactive materials are present after a certain time period it will decayed to 5 grams now from this point the further decaying process will depend upon these 5 grams present currently
examples of natural processes showing exponential growth or decay are<span>·<span> </span></span>Population growth<span>·<span> </span></span>Bacterial growth rate<span>·<span> </span></span>Viruses growth rate<span>·<span> </span></span>Radioactive decay<span>·<span> </span></span><span>Temperature decrease</span>
Answer:
Your username looks like you headbutted the keyboard and unfortunately, I doubt anyone is going to write three paragraphs for you.
Explanation:
Start here:
https://science.howstuffworks.com/environmental/earth/oceanography/rogue-wave4.htm
Answer:Margulis
She is the one who discovered it
