Answer:
the number of individual organisms born into a population in a given year - Birth rate
the movement of individuals out of a population - Emigration
the number of individual organisms that die in a population in a given year - Death rate
the movement of individuals into a population - Immigration
Explanation:
The birth rate describes the frequency of live births in a population. In contrast, the death rate, also called the mortality rate is the number of deaths in a population. They are usually reported as a number per 1000 people, per year.
Migration is the movement of organisms. Immigration is used to describe the act of organisms in a population into a new destination. Emigration is the act of organisms leaving their current population
The equation is balanced because the mass and charge are equal on both sides of the reaction equation.
In a nuclear reaction, one nucleus is transformed into another. In this case of the equation shown, the radon nucleus is being transformed into a polonium nucleus with the emission of an alpha particle.
The equation is balanced because a total mass of 219 is found on both sides of the reaction equation and a total charge of 86. Recall that an alpha particle is the same as a helium nucleus with a mass of four units and a charge of two units.
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Diploid chromosomes.
Diploid is basically a cell which contains two sets of chromosomes from each parent. In humans, the diploid chromosomes number is always the same and is always even.
Chromosomes are always in pair, and which is why every human being have an even number of chromosomes. Every child gets its chromosomes from both the parent, half from mother and half from father. All the cells in humans except the sex cells are diploid. Sex cells on the other hand are called haploid.
Answer:
Surfactants <u>reduces</u><u> surface tension of water </u>and <u>promotes</u><u> emulsification</u>.
Explanation:
Surfactant is generally an organic molecule or compound that is amphiphilic in nature. Surfactants can act perform as emulsifiers, detergents, foaming agents, dispersants and wetting agents.
Surfactants decreases the surface tension between the solid and liquid, gas and liquid and two liquids and can acts as emulsifying agents, cleaning agents, dispersing agents, foaming and anti-foaming agents.
