Answer:
a stem
Explanation:
Plants have tubes that run through their stems and roots. These tubes carry water, minerals, and sugars. There are two types of tubes: xylem and phloem.
Answer:
D. The total energy of a system can increase only if energy enters the system
Explanation:
According to the law of Conservation of Energy, energy can neither be created nor destroyed but can be transformed or converted from one form to the other.
A system has the same energy until there is an addition of energy externally. When energy is added, it will lead to an increment in energy. So, when work is done to the system or the system heated, energy increases.
Answer:
C) The rate applies to more individuals each year.
Explanation:
Suppose the initial population was 200 people and birth rate was 10% of that. So thats 0.10 * 200= 20 babies that year.
Next year the population is 200+ 20 = 220 people. Now if the birth rate is still 10% then you will have 0.10 * 220 = 22 babies that year.
Did you see that? The number of babies increased by 22-20= 2 extra babies each year.
Therefore, since rate applies to more individuals each year, you'll get increase in population
Answer:
By using periodic table.
Explanation:
By using periodic table the student can find out that which atom is more reactive because the arrangement of atoms on the periodic table occurs on the atomic number that shows the reactivity of atoms. Chlorine and bromines are members of same family but the chlorine is present above bromine in the group due to less atomic number. The reactivity of chlorine solution is higher than bromine solution due to unstable radical of chlorine.
