Example:
1 km (derived unit)
1000 meter (base unit)
100000 (centimeter)
1. Unit of measurement is a numerical value that identifies the magnitude of a physical quantity. Hence, there were a lot measurement that was used pre-modern era. And now, Internation System of Units is used.
<span>2. </span>System of measurement is a range, assortment and group of units of measurement in a single quantity to be measured which entirely related to each other.
<span>3.Tools of measurement are devices that construes a quantity or a series of system measurement. It an object that relies on being valid and reliable, used in many certain areas like physical quantities, psychological constructs or other entities that can be measured and has a system of measurement. </span>
Answer:
The correct answer is E.
Explanation:
- Paul Ehrlich is the scientist who discovered a treatment for the disease Syphilis in the year 1900 which was then named Magic Bullet as a concept. This answer is correct.
- Alexander Fleming was a Scottish scientist and while he was working on a cure for influenza, commonly known as flu, after a coincidence on one of his experiments he discovered a substance. He observed that it killed the bacteria that it came into contact with and named it Penicilin.
- Howard Florey and Ernst Chain are scientist who picked up Fleming's discovery of penicilin and tried to improve it. As a result of their experiments, they discovered a technique that was used to make a more pure and concentrated penicilin.
- Kirby Bauer method is used to find out if a certain type of bacteria has any sensitivity to a specific type of antibiotic.
The correct answer is E, none of the pairs are mismatched.
I hope this answer helps.
The right answer is A.) nondisjunction
Non-disjunction is an absence of separation of two members of a pair of homologous chromosomes or chromatids from a chromosome during meiosis or mitosis, resulting in one of the daughter cells having two copies of the same chromosome or chromatids and the other daughter cell receives none.
Answer:
they have adapted to the temperatur since water trafers water faster than air. (more info below)
Explanation:
animals also have adaptations to temperature control, as water transfers heat faster than air. At the end of the day, aquatic animals have a lot of adaptations for moving in the water, such as a streamlined design, flippers, and a swim bladder, which acts like a fish ballast.
hope this helped!
Answer:
The correct answer is - 38.15 gm of NaCl.
Explanation:
Write the balanced equation for this reaction of sodium (Na) and chlorine (Cl₂) to produce sodium chloride (NaCl):
2Na + Cl₂ —> 2NaCl
the mass of Na and the mass of NaCl :
Molar mass of Na = 23 g/mol
In the balanced equation = 2 × 23 = 46 g
Molar mass of NaCl = 23 + 35.5
= 58.5 g/mol
similarly in balanced equation = 2 × 58.5 = 117 g
From the balanced equation above,
46 g of Na reacted to produce 117 g of NaCl.
By converting it to 15 grams of Na.
Therefore,15 g of Na will react to produce = (15 × 117)/46 = 38.15 g of NaCl.
Thus, 38.15 g of Na
