Answer:
<h2>
Gram staining is a technique used to differentiate between Gram-positive and Gram-negative bacteria.</h2>
Explanation:
Gram stain color the bacteria either red or violet depending on whether they are Gram positive or Gram negative. Gram positive bacteria have thick cell wall containing peptidoglycan compared to Gram negative bacteria which have thin cell wall. Due to this Gram positive bacteria stains purple by crystal violet. So, slide containing <em>S. pyogenes</em> with purple violet indicates that it is a Gram positive bacteria.
B. are more difficult to control than point sources. This is because A. is wrong (point source), and C. is wrong, because it doesn't necessarily cost less or more to identify the sources. D. may be right, as non point sources are natural, such as snow melts or rain.
Answer:
See the answer below
Explanation:
The light microscope is able to produce images in their natural color because photons of visible light are utilized as a light source and color is a function of light. Both transmission and scanning electron microscopes are not able to produce images in their natural colors because they utilize beams of electrons to image specimens. <em>They produce grayscale images instead because the regions of the specimen where electrons pass through are usually white while other regions remain black.</em>
Answer: White Oak
White oak comprises 15% of the commercially available hardwoods in the US. It is a used for structural timbers, flooring, and furniture because<span> of its length (rees average approximately 70 to 80 feet in height), color (White with creamy sapwood and dark gray-brown heartwood) and texture (very strong and hard, and with good steam bending properties). It takes a good finish when machined, nailed and screwed well. </span>
Answer:
Explanation:
BMR or basal metabolic rate can be define as the rate of expenditure of available energy when the body is in rest to keep the vital functions active such as breathing and circulation.
Males typically have higher BMR than females because they tend to have higher proportion of lean body mass as compared to females. The females as compared to males exhibit more amount of fat cells. The metabolism of fat cells is slow.
