Answer: D. Acid from abandoned mines
Explanation:
Point source pollution can be define as the pollution that can be caused by a pollutant whose source of origin is known. As the source of origin is known the path of the pollutant can be traced back to it's origin hence, the pollution can be controlled.
Among the options given, D. Acid from abandoned mines. is the correct option this is because of the fact that the source of origin of the pollutant is known that is abandoned mines.
Answer:
Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?
B. Mycoplasmas
The protein from which hook and filaments of flagella are composed of, is
B. flagellin
A cluster of polar flagella is called
A. lophotrichous
The cooci which mostly occur in single or pairs are
B. Diplococci
Flagella move the cell by
C. spinning like a propeller
Explanation:
Answer:
The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other
Explanation:
1 and 2
(every organism is genetically unique)
(provides variety of offspring)
Answer:
Psychoactive
Explanation:
Psychoactive effects of drugs are capable of changing the mood, awareness and thoughts of the users/consumers.
Psychoactivity of drugs gives rise to change in the information exchanges between the cells of the brain.They are also able to copy the effects and behavior of neurotransmitters. This gives rise to continued dependence and addiction of such drugs.
Example of psychoactive drugs include cocaine, cannabis, alcohol etc
