Answer:
has no nucleus; found in unicellular organisms
Explanation:
Prokaryotic cells are primitive cells found in lower organisms. Prokaryotic cells do not have a true cell.
- A true nucleus lacks an envelope which contains the nuclear materials.
- Most of the organelles lacks membrane bound organelles.
- The true nucleus is lacking in prokaryotes.
Eukaryotic cells have true nucleus.
Answer:
Soccer is a great way to maintain health, fitness, strength, and endurance. Soccer can help with cardiovascular health, lower body fat and improves muscle tone, increases muscle and bone strength, and improves health due to shifting between walking, running, and sprinting. Soccer can also promote teamwork and sharing, increase skills in concentration, persistence, and self-discipline, and can provide an opportunity to build your confidence and self-esteem, and it can also reduce anxiety.
Explanation:
Answer:
The most precise is 0.0034 m ⇒ 1st answer
Explanation:
<em>Lets revise the meaning of precise</em>
Precision is referred as the closeness of two measurements to one
another.
Highest number with significant digit is the most precise
Ex: <em>Highest significant </em>of optical instrument is the Wavelength of visible (red)
light = 0.00006 cm
Hence the <em><u>most precise</u></em> device for measuring length is the given optical
instrument
The difference between accuracy and precise
<em>Accuracy</em> is how close a value is to its true value
<em>Precision</em> is how repeatable a measurement is
We have three numbers
0.0034 m, 45.6 m, and 1234 m
The least precise is 1234 m
The most precise is 0.0034 m
3.92s
Ultrasound works by the waves traveling to the object, bouncing off, then returning. So the distance traveled is twice that of the actual distance.
Therefore d=6,000m
d= speed x time
Speed of sound in water is about 1,530.
6000 = 1530 * t
t = 3.92s
