The circulatory system works with the muscular system because then the muscles will be able to get oxygenated blood for the muscles to continue moving properly
The reason why sharks can swim fast is that unlike most fish, sharks have tails that are not horizontally symmetrical . Instead , the top of a shark's tail protrudes further back than the bottom , giving the shark lift while swimming and making it "spring" forward at speed.
Most fish make a single water "ring" that moves backward at the end of their tail's stroke but sharks are thought to produce two rings because of their asymmetrical tail which bespeaks a more efficient propelling action.
It has also been discovered that sharks can raise the tiny teeth-like structures called placoid scales on their skin to create tiny wells across the surface of their skin which reduces drag just like the dimples on a golf ball, thus enabling the shark move forward faster.
The following were required;
- Dependent Variable - productivity of workers
- Independent Variable - drinking the special juice
- Control group - Group B
<h3>What is a variable?</h3>
A variable is a measurable quantity that changes in an experiment. The variable that is manipulated in the experiment is called the independent variable.
Now these are the variables that are involved in this experiment:
- Dependent Variable - productivity of workers
- Independent Variable - drinking the special juice
- Control group - Group B
Learn more about experiment variable:brainly.com/question/16550062?
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Obesity and genetic factors is usually a strong risk factor for many different diseases and it's no difference in this case - people/women who are obese and have a family history of breast cancer also possibly have a higher likelihood of developing it themselves.
Any infectious diseases can be prevented by vaccinations
<u>Explanation:</u>
- Vaccines defend against infectious diseases that cause severe illness and seldom death.
- It prevents disease in somebody who receives them and protects those who get into contact with unvaccinated individuals.
- Vaccines include the corresponding antigens or parts of it that cause illnesses, but the antigens in vaccines are either destroyed or incapacitated.
- When they are introduced into fatty tissue or muscle, vaccine antigens are not powerful enough to generate the symptoms and signs of the disease but are tough enough for the immune system to build antibodies against them.
