Answer:
A biological environment is a physical environment that has living things in it.
The only physical environments that I know of that are not biological environments are human-constructed sterile facilities, or planets/moons/asteroids/other celestial objects that can’t support life.
Answer:
The benefits of sexual reproduction:
In the offspring, genetic variation produces
Due to variation, the species can adapt to new environments, giving them a survival advantage.
a disease is less likely to affect all the individuals in a population
Explanation:
Answer:
Because older cultures of gram-positive bacteria tend to lose their ability to retain crystal-violet in the peptidoglycan of their cell walls and can be confused with gram-negative bacteria.
Explanation:
Gram staining is used to differentiate between two major groups of bacteria. Gram-positive and gram-negative, these bacteria differ in the amount of peptidoglycan in their cell walls. Gram-positive bacteria have a higher amount of peptidoglycan, which absorbs the violet crystal complex used in gram staining, staining them purple/violet. Old cultures of gram-positive bacteria tend to lose the ability to retain the violet crystal and are stained by safranine, staining them red/pink and appear to be gram-negative.
D. NaCl contains an ionic bond and C12H22O11 contains covalent bonds.
Hello :), nitrogen have 7 protons and 7 electrons.
