The aswer is b. Vascular Cambium
it is a plant tissue which is located between Xylem and Phloem in the stem and root of a vascular plant and the source that produces Secondary xlem and phloem
Nb : Vascular Cambium does not transport waters , minerals, it only produce Xylem and Phloem which add the tree's girth
Explanation:
Hydrogen atoms contain 1 proton and 1 electron while being devoid of neutrons. When they lose their electron they form an ion or H+, a particle carrying a unit of positive charge. pH measures how basic or acidic a water-based solutions are, with a formula for pH is
pH = -log[H+].
...where pH is -base 10 log of the concentration of hydrogen ions within the solution.
Initial volume= 20 mL
Final volume= 600 mL
# of dilutions= 
= 30
for a pH 2= [H+]= 
∴ [H+]= 
and pH is an antilog of [H+]= - log
∴pH = 3.47
Learn more about pH at brainly.com/question/4981491
Learn more about pKA at brainly.com/question/11062486
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Answer:
Diseases is a particular abnormal condition that a negetavile affects the parts of the body system
The different ways we can get a disease are:
. Contaminated air
. Dirty water
.direct or indirect contact with another person who have diseases.
A plant or animal organism that lives In or on another takes the nourishment from that other organism is known as parasite.
Explanation:
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