Answer: Vaccines are made from a protein or other small pieces taken from a virus or bacteria.
Explanation: A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. Meaning my answer is correct.
Answer:it goes in this order 2,4,1,3
Explanation:
The right answer is B.
Thus, cancer is the consequence of an accumulation of genome alterations, somatic mutations (mutation affecting all types of cells except germ cells).
The mutation rate can be increased by some agents of the environment. This is the case of ultraviolet (UV) radiation that causes DNA damage and is responsible for many but not all skin cancers.
Answer:
a.Parkinson's disease
Explanation:
Dopamine is a neurotransmitter who's function is to be the body's reward center "happy hormone" and it is also involved in motor control.
For unknown reasons in the elderly, dopamine is lost when the dopamine-producing nerve cells die in the basal ganglia and substanta nigra which results in movement problems such as, tremor, slowness of movement, stiffness, and balance problems.
This disease is called Parkinsons disease which is a progressive and degenerative disorder
Answer:
Mechanical weathering is most common in cold, dry climates.
Explanation:
