Answer:
True
Explanation:
In Retrovirus such as HIV, when the virus enters the host's cell it releases enzyme reverse Transcriptase which generates a complementary DNA(cDNA) by the process called Reverse transcription.
By this process the positive single stranded RNA genome is liberated into a cDNA molecule.
Since the process of reverse transcription is prone to errors, it can cause mutation that lead to drug resistance or enable the virus evade the body's immune system.
B. Atom
C. Electron
D. Molecule
2. According to John daltons Observations, when elements combine in a compound,
A. the ratio of their Masses is always the same.
B. each element contributes an equal number of atoms
C. their volumes are always equal.
D. their masses are always equal
The sentence shown in the question above, about the existence of natural and artificial lakes and ponds, is true.
Natural lakes and ponds are formed by the accumulation of water in land depressions created by glacial activity, earthquakes, and volcanic craters, among others.
Artificial lakes and ponds are created by human activity, usually to store water for irrigation of crops or other agricultural activities.
Learn more about ponds and lakes:
#SPJ6
Answer:
This is true.
Explanation:
It gave me 100% on the ed quiz i took.
A. Helium, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call
them, HHNOPS
B. Halogen, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call
them, HHNOPS
C. Gold, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,
GHNOPS
D. Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call
them, CHNOPS
E. Carbon, helium, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,
CHNOPS
F. Silver, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,
SHNOPS
Answer:
E. Carbon, helium, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call them,
CHNOPS.
or
D. Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur, or, as some prefer to call
them, CHNOPS
Answer: The means for transmission of disease-causing microorganism is provided by the direct or indirect contact.
Microorganisms can cause disease only once they are transferred to the body. The disease causing microorganisms are termed as pathogens which are transmitted by several ways such as from skin to skin, by nuclei droplets, through blood and body fluids or via air. In vector transmissions the disease is carried by the parasitic insects via animals, air borne transmission occurs when microorganisms move through air or the dust particles, droplet transmission occurs by coughing, sneezing or talking by the person who is infected while indirect transmission occurs by physical contact or by touching contaminated objects.