Danish scientist Hans Christian Gram devised a method to differentiate two types of bacteria based on the structural differences in their cell walls. In his test, bacteria that retain the crystal violet dye do so because of a thick layer of peptidoglycan and are called Gram-positive bacteria. In contrast, Gram-negative bacteria do not retain the violet dye and are colored red or pink. Compared with Gram-positive bacteria, Gram-negative bacteria are more resistant against antibodies because of their impenetrable cell wall. These bacteria have a wide variety of applications ranging from medical treatment to industrial use and Swiss cheese production.
When an active cold front over takes a warm front is creates tornadoes.
Answer:
I believe the correct answer would be spem cells. Please mark brainliest.
Explanation:
Answer:
YES
Explanation:
As g ∝ 1/d² between two two components, further potential difference would result in lower gravitational pull. So the influence of gravitational pull among them also reduces as two things are isolated from the others.
<span>Individual cells, as well as organisms, must maintain homeostasis in order to live too. One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane.</span>
