Answer:
Explanation:
To identify the different variables from this experiment, we must first understand what the different types of variables depict.
Independent variables are those variables that do not rely on the conditions of the experiment. They are what causes the experiment to proceed the way we want.
Dependent variables are the variables that rely on the effect of the independent variables. They are what we are actually testing for.
Controlled variables are the variables that are constant in an experiment and their outcomes are used to checkmate an experiment.
In the experiment by Justin:
Independent variable: water, coffee, milk
dependent variable: garden growth
controlled variable: fertilizer
Genetic drift can lead to speciation as it allows variation within the genes of a species. For instance, genetics can soon evolve into a new phenotype in a species - humans with tails, cats with gills, etc.
Therefore, genetic drift can lead to speciation as it allows variety and evolution to occur within the genetics of a species.
Hope this helps!
The least likely result of speciation from teh possibilities you presented would be a0 random mating between members of the species.
all species work on the same wavelength when it comes to mating - it's survival of the fittest, and every male wants a healthy female to bear his offspring, and every female wants a strong male to protect that offspring. they don't have babies just for the heck of it :)
The correct answer for above statement is:
True
It is registered on a scale from 0 to 14, with seven being neutral. If the pH value is below 7, the food is distributed as an acid; if it is above 7, the food is classified as alkaline. Most bacteria grow well at neutral pH, but many can spawn in a pH range from 4.5 - 10.0.
Explanation:
Acidity is estimated using what is perceived as the pH scale which works from 0 to 14, where pH 7.0 is neutral, a pH smaller than 7 is acidic and a pH elevated than 7.0 is basic or alkaline. Foods with a pH close to 7.0 are model for most bacterial extension. Every microorganism has a least, optimum and maximum pH for growth.
The right answer is the kidney will regulate the blood pressure by the renin angiotensin aldosterone system.
The kidney plays a role of selective filtering of the blood. It allows the blood to get rid of its waste. But it also removes water and mineral salts that are in excess.
But the kidney also plays a dynamic role in increasing the pressure, by means of a system called "renin-angiotensin system" which is one of the most powerful natural hypertensives available to the body. Thanks to an enzyme he makes, renin, the kidney will turn a normal blood protein, angiotensinogen, into angiotensin, which causes the vessels in the body to contract and therefore increase blood pressure. This effect is manifested permanently in a disease which is the stenosis of the renal artery, that is to say the permanent narrowing of the caliber of this artery. The kidney, believing that the blood pressure decreases because of this narrowing, will permanently produce renin, which will cause an immediate increase in blood pressure.