D. He saw that the continent fits together like pieces of a jigsaw puzzle
as well, he had evidence from having similar rock formations from places that seemed to "connect", and he found fossils of the same dinosaur in different areas, that would have been impossible to go to because of the size and the inability to swim by the dinosaurs
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Answer:
Coliform count is a very important test that is done to determine water contamination because the presence of some types of coliform bacteria in the water indicates the presence of sewage or sewage waste.
The group of total coliforms includes several genera, all of which may be of fecal origin.
The most common fecal coliform is Escherichia coli
The answers that are meant for the blanks spaces are listed below according to their numbers:
1. Nitrogenous
Nitrogenous wastes refers to metabolic wastes that contain nitrogen; two examples of these are urea and uric acid.
2.Water
3. Acid base
Kidney is an osmoregulatory organ, it participates in homeostasis by regulating the amount of water, electrolytes and the concentration of acid base balance in the body. It does this by means of various mechanisms which ensure that the internal environment of the body is kept constant.
4. Kidney
There are two kidneys in the body, they are responsible for urine production. They do this by filtering the blood and removing wastes, the wastes are then processed into urine and remove from the body.
5. Ureters
6. Peristalsis
7. Urinary bladder
Urine production involves the ureters, urinary bladder and urethra, these three form the urinary tract which act as a plumbing system that drain urine away from the kidneys.
8. Exterior
Urethra is the conducting pipe which leads the urine to the outside of the body for excretion.
9. 20 centimeter
10. Semen
The urethra is a tube like structure, which is approximately 8 inches long in male, this is equivalent to 20 centimeters. It is used for the transportation of urine and semen.
11. 4 centimeter
In female, the urethra is between one to two inches long, which is equivalent to 4 centimeter.
12. Urination or micturition.
The process of passing the urine out of the body through the urethra is called urination.
13. The external urethral sphincter
The urethral sphincter is associated with two muscles which are the internal urethra sphincter which is a smooth muscles that is under involuntary control while the external urethra sphincter is a striated muscle that is under voluntary control.
14. Incontinence.
Incontinence refers to poor bladder control, there are many types of incontinence caused by various factors.
Answer:
Group 4
Explanation:
The control group in this case would be those students in group 4.
<u>The control group during an experiment is a group that does not receive the treatment administered to other groups and as such used as a standard for measuring the effects of the treatment on other groups. </u>Whatever differences that exist between the control group and the various treatment groups is attributed to be as a result of the treatment administered to the groups.
In this case, group 4 only used warm water for washing their hands instead of the hand sanitizer/soap used by the other groups. Whatever differences found out in the bacterial count in their respective culture swabs can be attributed to the effects of the hand sanitizer/soap.
