Inside our body, millions of nephrons in the kidney filter wastes in 2 steps. Each nephron has a glomerulus and a tubule. Waste filtering undergoes 2 steps:
First, fluid and waste pass through the glomerulus but, proteins, blood cells, and other large molecules are prevented from passing through. Second, the filtered fluid passes through the tubule wherein the filtered wastes are removed; minerals are sent back to the body, and the remaining output becomes urine.
There are two major sources of energy that power the earth's environmental systems, these are SUN AND THE EARTH'S INTERIOR HEAT.
The heat energy from the sun is the one responsible for processing all the external processes that occur in the atmosphere, hydrosphere and on the earth surface.
The energy from the earth's interior is the one that is respondsible for powering the internal processes that produce earthquakes, volcanoes eruptions and mountain formation.
Answer:
Salt is a compound
Explanation:
A compound had fixed mass ratio of elements.
And the characteristics of the compound is different from its constituents. E.g taste of soap is different from its constituents like palm oil, soda, fragrance etc
Other compounds are water, caustic soda, limestone etc
Answer:
A. 50%
Explanation:
Using Gregor Mendel's genetics cross, the probability of obtaining brown hair is 50% or 2/4. In Gregor Mendel's genetics cross, the dominant gene represented as Bb is crossed against the recessive, bb. On completing the cross, the products of the cross are two dorminant gene (brown hair) with a trait of red hair and the recessive gene will not be expressed, while the two remaining products are recessive, bb and therefore the recessive gene for red hair will be expressed.
