In his experiments with garden peas, mendel found that one physical unit is inherited from the father and one from the mother. this provided evidence for:

Mendel's law of segregation

Explanation:

In the 1860s, Gregor Mendel discovered the principle of heredity.

He proposed a theory, which was called Mendel's law of segregation. According to this law, allele pairs either segregate or separate during gamete formation or in fertilization.

He named the dominant allele (Y) [or the male unit] and recessive allele (y) [female unit].

The dominant allele was Yellow color seed and recessive allele was green color seed.

Genotypes (YY) and (Yy) gametes to form yellow color seeds, and (yy) genotypes gametes green color seed.

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -